# CNC Machinist Calculator Ultra — All-in-One Machining Tool

> All-in-one machining calculator for CNC operations, engineers, and machinists. (iPhone/iPad app by Shane Anderson.)

- Source: https://appshunter.io/ios/app/cnc-machinist-calculator-ultra/id6474093839 (this page in markdown: same URL + `.md`)
- Developer: [Shane Anderson](https://appshunter.io/developer/1037668280)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 4.90/5 from 24 App Store ratings · 11 written reviews indexed
- Age rating: 17+
- Requires: iOS 14.0.0 · 80 MB
- Languages: Russian, Vietnamese, American English, European Spanish, Italian, Korean, German (Germany), European Portuguese, Chinese (Simplified, China), French (France) and 1 more
- Released: 2024-05-05
- Data updated: 2026-08-29
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/cnc-machinist-calculator-ultra/id6474093839/reviews.md

## What is CNC Machinist Calculator Ultra?

Unlock the full potential of your CNC machining operations with CNC Machinist Calculator Ultra, the premier tool designed for machinists, engineers, and anyone involved in machining processes. 

With our Ultra App, you get access to all the features of the Pro App, plus many new features. Users gain access to an extensive range of calculations and functionalities that streamline workflow, enhance precision, and boost productivity across a variety of machining operations including: turning, milling, drilling, tapping, thread milling, center drilling, broaching, knurling, angle solving, macro variables, GD&T, & more!

Comprehensive Calculations Across a wide array of Operations:
CNC Machinist Calculator Ultra brings you a breadth of calculations. From optimizing cutting speeds and feeds for different materials to calculating drill sizes for tapping operations, our app ensures you have the precise data needed for any machining task. Lathe and mill operators will find cutting speed recommendations, while drill and tap operations are simplified with detailed speed, feed, and size recommendations.

Advanced Functionality for Precision Machining:
Our app goes beyond basic calculations. Features like True Position Calculations, Spindle Speed and Feed Rate Conversions, and Metal Removal Rates are designed to enhance the precision and efficiency of your machining operations. Whether you're determining the perfect drill point length or analyzing the effective cut diameter of a ball endmill, CNC Machinist Calculator Ultra equips you with the tools for success.

Efficiency and Precision at Your Fingertips:
Designed with the machinist in mind, our app's intuitive interface allows for quick access to complex calculations and recommendations, simplifying decision-making and reducing potential errors. With CNC Machinist Calculator Ultra, you're not just working smarter; you're working with precision at the speed of thought.

Features Tailored for Every Machining Need:

Cutting Speed and Feed Recommendations for a variety of machining operations ensure optimal performance and tool life.
Drill Cutting Speed & Feed Recommendations tailor your drilling operations for maximum efficiency.
Tap Drill Size Calculations provide accurate pre-tap hole sizing to improve thread quality.
True Position Calculations offer precision in the placement of holes and features, crucial for high-quality finished parts.
Spindle Speed and Feed Rate Conversions allow for easy adjustments between materials and tools, ensuring your machine settings are always optimal.
Drill Point Length and Metal Removal Rate calculations optimize drilling operations, helping to improve overall machining efficiency.
Adaptive Feed Control for Side Milling and Ball Endmill Cusp Height calculations enhance the surface finish and precision of your parts.
The easy-to-use Thread Mill Program Generator to effortlessly create accurate threading paths for your CNC projects, making threading simpler and more efficient.
Use our Gauge Block Stack Calculator to quickly find the right combination of blocks for your projects, simplifying precision measurements and saving time.
With our Keyway Broach Program Generator, effortlessly generate custom CNC programs for keyway broaching, streamlining the process and ensuring perfect fits every time.
Find Thread dimensional data including special sizes
Look up ISO-286 Fit tolerance data

Dedicated Support and Continuous Improvements
We are committed to continuous improvement, regularly updating our app with the latest machining strategies and features based on user feedback and industry trends. Our dedicated support team is always ready to assist, ensuring you maximize the utility of CNC Machinist Calculator Ultra.

By downloading or using CNC Machinist Calculator Ultra, you agree to be bound by Apple’s Standard End-User License Agreement (EULA), which you can review here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Cutting speed and feed recommendations
- Tap drill size calculations
- True position calculations
- Spindle speed and feed rate conversions
- Thread mill program generator
- Angle solving and macro variables

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Subscription - 1 Month | $1.99 | per month |
| Subscription - 12 Months | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Access - One Time | $39.99 | one-time |


## Recent user reviews (10 of 11)

All indexed reviews: https://appshunter.io/ios/app/cnc-machinist-calculator-ultra/id6474093839/reviews.md

### 5/5 — Awesome

*2026-01-31*

Amazing app

### 4/5 — Добавьте пожалуйста

*2025-10-30*

Хотелось бы видеть в программе расфрезеровеу отверстий через интерполяцию g12.1 на токарном с осью С. Или возможность фрезерования по контуру на токарном в полярных координатах. Хотелось бы еще добавить функционал cncstapeer free. Или xc cnc. Купил бы сразу если бы можно было быстро прописать g код для фрезеровки лысок. Отверстий или граней.

### 5/5 — Отличный калькулятор, аналогов на IOS просто нет.

*2025-10-09*

Работа связана с ЧПУ, приложение очень выручает, спасибо разработчику.

### 3/5 — Great but

*2025-04-04*

Great with so many features, but subscription is a big disappointment. I understand the reason but would like the option even if more expensive.

**Developer response:** Great news—we took your advice! Based on your review and community input, CNC Machinist Calculator Ultra now includes a one-time, lifetime license option.

You can now bypass the subscription entirely if you prefer a single purchase, or keep the subscription tier for regular database updates. Thanks for pushing us to make this option a reality!

### 1/5 — Subscription only

*2025-03-01*

This should be a one time purchase not a monthly or yearly subscription. Will not be getting.

**Developer response:** Thanks for your feedback! We wanted to let you know that we took user input to heart and have officially added a one-time, lifetime purchase option for CNC Machinist Calculator Ultra.

The subscription model is still available to help us support continuous development, but you now have the choice between that or a lifetime license. We want to make sure you have the options that best fit your workflow!

### 5/5 — Only Machining Needed

*2025-01-31*

This is the best machining app that I use on a daily basis.

### 5/5 — Great app!

*2024-11-20*

I’ve come to rely on this app for all my threading data, it’s very useful has lots of info.

### 5/5 — Great App

*2024-09-23*

I love this app, this app has really helped me improve my understanding of SFM and feed rates.  The developer is extremely helpful as well if you have any questions!  This app is a MUST HAVE for any machinist!

### 5/5 — An essential tool for every CNC Machinist

*2024-07-29*

This app is a MUST BUY for everyone in the manufacturing industry because you will use it constantly! I highly recommend this for students, too!

### 5/5 — Excellent App

*2024-06-13*

I started my fitting and turning apprenticeship back in January and this is an amazing app and is so helpful!

## Frequently asked questions about CNC Machinist Calculator Ultra

### What machining operations does CNC Machinist Calculator Ultra support?

CNC Machinist Calculator Ultra supports a wide array of operations including turning, milling, drilling, tapping, thread milling, center drilling, broaching, knurling, angle solving, macro variables, and GD&T.

### How does CNC Machinist Calculator Ultra help improve precision?

The app offers advanced functionalities like True Position Calculations, Spindle Speed and Feed Rate Conversions, and Metal Removal Rates, all designed to enhance the precision and efficiency of your machining operations.

### Is CNC Machinist Calculator Ultra available on multiple devices?

Yes, CNC Machinist Calculator Ultra is supported on iPhone, iPad, and iPod devices, making it accessible across Apple's mobile ecosystem.

### What is the update frequency for CNC Machinist Calculator Ultra?

The latest version, 1.2.206, was updated on March 9, 2026, indicating a commitment to regular updates and improvements for users.

### Does CNC Machinist Calculator Ultra have ads?

No, CNC Machinist Calculator Ultra is ad-free, providing an uninterrupted user experience for all its calculations and features.

### What are the subscription options for CNC Machinist Calculator Ultra?

CNC Machinist Calculator Ultra offers a 1-month subscription for $1.99 with a 7-day free trial, and a 12-month subscription for $19.99, also with a 7-day free trial.

### What is the age rating for CNC Machinist Calculator Ultra?

CNC Machinist Calculator Ultra has an age rating of 17+, suggesting it is intended for mature users due to the technical nature of its content.

### How does CNC Machinist Calculator Ultra compare to its Pro version?

CNC Machinist Calculator Ultra includes all the features of the Pro App, plus many new features, offering a more comprehensive set of tools for users.

## Version history (last 5 releases)

### 1.2.221 — 2026-08-24

Work offline on the shop floor. Lifetime Access can download charts, tables, and images so the app keeps working with no cell service or Wi-Fi.

The app now includes the following features:


1. Thread Mill Program Generator  
2. Slitting Saw Speed and Feed Calculator  
3. Gauge Block Stack Calculator  
4. Keyway Broach Program Generator  
5. Height Over Ball Calculator for Countersinks and Taper Bores  
6. Knurl Calculator  
7. ISO Fits and Tolerance Calculator  
8. Countersink & Taper Bore Measurement Over Ball  
9. Lathe Cutting Speed & Feed Calculator  
10. Lathe Feed Rate Conversions  
11. Lathe Groove Cut-Off Cycle Time  
12. Lathe Rough Pass Cut Time  
13. Lathe Spindle Speed Conversion  
14. Lathe Taper Programming  
15. ACME & Stub ACME Threads 
16. Whitworth Thread Data (BSF & BSW)
17. Special UN & Metric Thread Sizes with Anodize & Plating Allowance  
18. UNC, UNF, UNEF, UNJ, UNM, UNR, UNS, and UN Threads  
19. M Profile Threads  
20. NPT Threads  
21. STI Threads  
22. Tap Drill Calculator  
23. Thread Data and Thread Over Wire Information  
24. Thread Milling Calculators  
25. Tapping Speed Calculators  
26. Adaptive Feed Control  
27. Cusp Height Ball Mill Calculation  
28. Ball Endmill Effective Diameter Calculation  
29. Mill Feed Rate Conversion  
30. Material Removal Rate Calculation  
31. Horse Power Calculator  
32. Radial Chip Thinning Calculation  
33. Mill Cutting Feed & Speed Calculator (TrueFeed Physics engine)
34. Endmill Runout Calculation  
35. Center Drill Dimensions  
36. Drilling Calculators and Drill Chart  
37. Gun Drill Calculators  
38. Arc Calculators  
39. Bolt Pattern Calculators  
40. Machinist Quiz  
41. Custom Macro Variables  
42. G-Codes and M-Codes Reference  
43. GD&T Learning Center  
44. Geometric Calculators  
45. Sine Bar Calculation  
46. Hardness Conversions  
47. Material Property Search with SFM Data  
48. Socket Head Cap Screw Hole Dimensions  
49. Surface Finish Calculators  
50. Thermal Expansion Calculator  
51. Tool Wear Information  
52. Triangle Solver  
53. True Position Calculators with MMC / LMC bonus tolerance adjustment
54. Unit Converter  
55. Material Weight Calculator  
56. Scientific Calculator  
57. Grinding Equivalent Diameter Calculation  
58. Grinding Grit Size Conversion  
59. Plunge Grind Calculations  
60. Grind RPM Cylindricity Error Calculation  
61. Grind Wheel and Workpiece Speed Calculation  
62. Surface Grind Calculations  
63. Virtual Machining Assistant
64. Reaming Speeds and Feeds
65. Deflection Calculator for Boring Bars
66. Involute Spline dimensional Data per ANSI B92.1 with over wire measurement limits
67. SAE Spline dimensional Data per SAE J499a
68. G76 Lathe thread program creation
69. G84 Tap cycles can now be selected from the thread section
70. G81, G82. G83, & G73 Drill canned cycle creation
71. Rectangular hole patterns & BHC pattern Coordinates can now be exported to Drilling & Tapping cycles
72. Coolant Concentration Calculator
73. C-Axis Rotational Feed Conversion Calculator
74. Bandsaw cut time calculator
75. Link to Desktop - Use your Apple subscription to unlock access to the Web app: www.CNCmachinistCalculatorUltra.com
75. Machinist Tip of the Day - Over 1500 tips for machinists to be saved or shared
76. Machining Formula Library - we’ve added 172 machining and metalworking formulas to the app.
77. 2D CAD & DXF Generator -  You can now import, draw, modify, measure angles, snap to intersections, and export CNC-ready DXF files right from your phone.
78. Tolerance stack mini game - Race the clock to inspect parts! Quickly compare measurements against tolerances and choose to accept, rework, or scrap
79. Now you can draw lathe CAD profiles and turn the CAD into a rough and finish canned cycle with or without cutter radius compensation.
80. Involute spline data per ISO 4156
81. G-code program simulator
82. Spur Gear data
83. Indexable Insert Catalog
84. Offline use available with lifetime access

### 1.2.220 — 2026-08-14

New: TrueFeed Physics Engine for advanced milling speeds & feeds, improved drill charts for easier use, and Community Cut Data—submit, rate, verify, and share proven speeds and feeds across our material library.

The app now includes the following features:


1. Thread Mill Program Generator  
2. Slitting Saw Speed and Feed Calculator  
3. Gauge Block Stack Calculator  
4. Keyway Broach Program Generator  
5. Height Over Ball Calculator for Countersinks and Taper Bores  
6. Knurl Calculator  
7. ISO Fits and Tolerance Calculator  
8. Countersink & Taper Bore Measurement Over Ball  
9. Lathe Cutting Speed & Feed Calculator  
10. Lathe Feed Rate Conversions  
11. Lathe Groove Cut-Off Cycle Time  
12. Lathe Rough Pass Cut Time  
13. Lathe Spindle Speed Conversion  
14. Lathe Taper Programming  
15. ACME & Stub ACME Threads 
16. Whitworth Thread Data (BSF & BSW)
17. Special UN & Metric Thread Sizes with Anodize & Plating Allowance  
18. UNC, UNF, UNEF, UNJ, UNM, UNR, UNS, and UN Threads  
19. M Profile Threads  
20. NPT Threads  
21. STI Threads  
22. Tap Drill Calculator  
23. Thread Data and Thread Over Wire Information  
24. Thread Milling Calculators  
25. Tapping Speed Calculators  
26. Adaptive Feed Control  
27. Cusp Height Ball Mill Calculation  
28. Ball Endmill Effective Diameter Calculation  
29. Mill Feed Rate Conversion  
30. Material Removal Rate Calculation  
31. Horse Power Calculator  
32. Radial Chip Thinning Calculation  
33. Mill Cutting Feed & Speed Calculator (TrueFeed Physics engine)
34. Endmill Runout Calculation  
35. Center Drill Dimensions  
36. Drilling Calculators and Drill Chart  
37. Gun Drill Calculators  
38. Arc Calculators  
39. Bolt Pattern Calculators  
40. Machinist Quiz  
41. Custom Macro Variables  
42. G-Codes and M-Codes Reference  
43. GD&T Learning Center  
44. Geometric Calculators  
45. Sine Bar Calculation  
46. Hardness Conversions  
47. Material Property Search with SFM Data  
48. Socket Head Cap Screw Hole Dimensions  
49. Surface Finish Calculators  
50. Thermal Expansion Calculator  
51. Tool Wear Information  
52. Triangle Solver  
53. True Position Calculators with MMC / LMC bonus tolerance adjustment
54. Unit Converter  
55. Material Weight Calculator  
56. Scientific Calculator  
57. Grinding Equivalent Diameter Calculation  
58. Grinding Grit Size Conversion  
59. Plunge Grind Calculations  
60. Grind RPM Cylindricity Error Calculation  
61. Grind Wheel and Workpiece Speed Calculation  
62. Surface Grind Calculations  
63. Virtual Machining Assistant
64. Reaming Speeds and Feeds
65. Deflection Calculator for Boring Bars
66. Involute Spline dimensional Data per ANSI B92.1 with over wire measurement limits
67. SAE Spline dimensional Data per SAE J499a
68. G76 Lathe thread program creation
69. G84 Tap cycles can now be selected from the thread section
70. G81, G82. G83, & G73 Drill canned cycle creation
71. Rectangular hole patterns & BHC pattern Coordinates can now be exported to Drilling & Tapping cycles
72. Coolant Concentration Calculator
73. C-Axis Rotational Feed Conversion Calculator
74. Bandsaw cut time calculator
75. Link to Desktop - Use your Apple subscription to unlock access to the Web app: www.CNCmachinistCalculatorUltra.com
75. Machinist Tip of the Day - Over 1500 tips for machinists to be saved or shared
76. Machining Formula Library - we’ve added 172 machining and metalworking formulas to the app.
77. 2D CAD & DXF Generator -  You can now import, draw, modify, measure angles, snap to intersections, and export CNC-ready DXF files right from your phone.
78. Tolerance stack mini game - Race the clock to inspect parts! Quickly compare measurements against tolerances and choose to accept, rework, or scrap
79. Now you can draw lathe CAD profiles and turn the CAD into a rough and finish canned cycle with or without cutter radius compensation.
80. Involute spline data per ISO 4156
81. G-code program simulator
82. Spur Gear data
83. Indexable Insert Catalog

### 1.2.219 — 2026-07-20

The Lathe Cutting Speed feature now includes an advanced Turning Feed & Depth of Cut engine. Select your insert shape, set your workholding and tool hangout conditions, and get smarter recommendations for feeds, speeds, and depth of cut.

The app now includes the following features:


1. Thread Mill Program Generator  
2. Slitting Saw Speed and Feed Calculator  
3. Gauge Block Stack Calculator  
4. Keyway Broach Program Generator  
5. Height Over Ball Calculator for Countersinks and Taper Bores  
6. Knurl Calculator  
7. ISO Fits and Tolerance Calculator  
8. Countersink & Taper Bore Measurement Over Ball  
9. Lathe Cutting Speed & Feed Calculator  
10. Lathe Feed Rate Conversions  
11. Lathe Groove Cut-Off Cycle Time  
12. Lathe Rough Pass Cut Time  
13. Lathe Spindle Speed Conversion  
14. Lathe Taper Programming  
15. ACME & Stub ACME Threads 
16. Whitworth Thread Data (BSF & BSW)
17. Special UN & Metric Thread Sizes with Anodize & Plating Allowance  
18. UNC, UNF, UNEF, UNJ, UNM, UNR, UNS, and UN Threads  
19. M Profile Threads  
20. NPT Threads  
21. STI Threads  
22. Tap Drill Calculator  
23. Thread Data and Thread Over Wire Information  
24. Thread Milling Calculators  
25. Tapping Speed Calculators  
26. Adaptive Feed Control  
27. Cusp Height Ball Mill Calculation  
28. Ball Endmill Effective Diameter Calculation  
29. Mill Feed Rate Conversion  
30. Material Removal Rate Calculation  
31. Horse Power Calculator  
32. Radial Chip Thinning Calculation  
33. Mill Cutting Speed Calculator  
34. Endmill Runout Calculation  
35. Center Drill Dimensions  
36. Drilling Calculators and Drill Chart  
37. Gun Drill Calculators  
38. Arc Calculators  
39. Bolt Pattern Calculators  
40. Machinist Quiz  
41. Custom Macro Variables  
42. G-Codes and M-Codes Reference  
43. GD&T Learning Center  
44. Geometric Calculators  
45. Sine Bar Calculation  
46. Hardness Conversions  
47. Material Property Search with SFM Data  
48. Socket Head Cap Screw Hole Dimensions  
49. Surface Finish Calculators  
50. Thermal Expansion Calculator  
51. Tool Wear Information  
52. Triangle Solver  
53. True Position Calculators with MMC / LMC bonus tolerance adjustment
54. Unit Converter  
55. Material Weight Calculator  
56. Scientific Calculator  
57. Grinding Equivalent Diameter Calculation  
58. Grinding Grit Size Conversion  
59. Plunge Grind Calculations  
60. Grind RPM Cylindricity Error Calculation  
61. Grind Wheel and Workpiece Speed Calculation  
62. Surface Grind Calculations  
63. Virtual Machining Assistant
64. Reaming Speeds and Feeds
65. Deflection Calculator for Boring Bars
66. Involute Spline dimensional Data per ANSI B92.1 with over wire measurement limits
67. SAE Spline dimensional Data per SAE J499a
68. G76 Lathe thread program creation
69. G84 Tap cycles can now be selected from the thread section
70. G81, G82. G83, & G73 Drill canned cycle creation
71. Rectangular hole patterns & BHC pattern Coordinates can now be exported to Drilling & Tapping cycles
72. Coolant Concentration Calculator
73. C-Axis Rotational Feed Conversion Calculator
74. Bandsaw cut time calculator
75. Link to Desktop - Use your Apple subscription to unlock access to the Web app: www.CNCmachinistCalculatorUltra.com
75. Machinist Tip of the Day - Over 1500 tips for machinists to be saved or shared
76. Machining Formula Library - we’ve added 172 machining and metalworking formulas to the app.
77. 2D CAD & DXF Generator -  You can now import, draw, modify, measure angles, snap to intersections, and export CNC-ready DXF files right from your phone.
78. Tolerance stack mini game - Race the clock to inspect parts! Quickly compare measurements against tolerances and choose to accept, rework, or scrap
79. Now you can draw lathe CAD profiles and turn the CAD into a rough and finish canned cycle with or without cutter radius compensation.
80. Involute spline data per ISO 4156
81. G-code program simulator
82. Spur Gear data
83. Indexable Insert Catalog

### 1.2.218 — 2026-07-10

The Lathe Cutting Speed feature now includes an advanced Turning Feed & Depth of Cut engine. Select your insert shape, set your workholding and tool hangout conditions, and get smarter recommendations for feeds, speeds, and depth of cut.

The app now includes the following features:


1. Thread Mill Program Generator  
2. Slitting Saw Speed and Feed Calculator  
3. Gauge Block Stack Calculator  
4. Keyway Broach Program Generator  
5. Height Over Ball Calculator for Countersinks and Taper Bores  
6. Knurl Calculator  
7. ISO Fits and Tolerance Calculator  
8. Countersink & Taper Bore Measurement Over Ball  
9. Lathe Cutting Speed & Feed Calculator  
10. Lathe Feed Rate Conversions  
11. Lathe Groove Cut-Off Cycle Time  
12. Lathe Rough Pass Cut Time  
13. Lathe Spindle Speed Conversion  
14. Lathe Taper Programming  
15. ACME & Stub ACME Threads 
16. Whitworth Thread Data (BSF & BSW)
17. Special UN & Metric Thread Sizes with Anodize & Plating Allowance  
18. UNC, UNF, UNEF, UNJ, UNM, UNR, UNS, and UN Threads  
19. M Profile Threads  
20. NPT Threads  
21. STI Threads  
22. Tap Drill Calculator  
23. Thread Data and Thread Over Wire Information  
24. Thread Milling Calculators  
25. Tapping Speed Calculators  
26. Adaptive Feed Control  
27. Cusp Height Ball Mill Calculation  
28. Ball Endmill Effective Diameter Calculation  
29. Mill Feed Rate Conversion  
30. Material Removal Rate Calculation  
31. Horse Power Calculator  
32. Radial Chip Thinning Calculation  
33. Mill Cutting Speed Calculator  
34. Endmill Runout Calculation  
35. Center Drill Dimensions  
36. Drilling Calculators and Drill Chart  
37. Gun Drill Calculators  
38. Arc Calculators  
39. Bolt Pattern Calculators  
40. Machinist Quiz  
41. Custom Macro Variables  
42. G-Codes and M-Codes Reference  
43. GD&T Learning Center  
44. Geometric Calculators  
45. Sine Bar Calculation  
46. Hardness Conversions  
47. Material Property Search with SFM Data  
48. Socket Head Cap Screw Hole Dimensions  
49. Surface Finish Calculators  
50. Thermal Expansion Calculator  
51. Tool Wear Information  
52. Triangle Solver  
53. True Position Calculators with MMC / LMC bonus tolerance adjustment
54. Unit Converter  
55. Material Weight Calculator  
56. Scientific Calculator  
57. Grinding Equivalent Diameter Calculation  
58. Grinding Grit Size Conversion  
59. Plunge Grind Calculations  
60. Grind RPM Cylindricity Error Calculation  
61. Grind Wheel and Workpiece Speed Calculation  
62. Surface Grind Calculations  
63. Virtual Machining Assistant
64. Reaming Speeds and Feeds
65. Deflection Calculator for Boring Bars
66. Involute Spline dimensional Data per ANSI B92.1 with over wire measurement limits
67. SAE Spline dimensional Data per SAE J499a
68. G76 Lathe thread program creation
69. G84 Tap cycles can now be selected from the thread section
70. G81, G82. G83, & G73 Drill canned cycle creation
71. Rectangular hole patterns & BHC pattern Coordinates can now be exported to Drilling & Tapping cycles
72. Coolant Concentration Calculator
73. C-Axis Rotational Feed Conversion Calculator
74. Bandsaw cut time calculator
75. Link to Desktop - Use your Apple subscription to unlock access to the Web app: www.CNCmachinistCalculatorUltra.com
75. Machinist Tip of the Day - Over 1500 tips for machinists to be saved or shared
76. Machining Formula Library - we’ve added 172 machining and metalworking formulas to the app.
77. 2D CAD & DXF Generator -  You can now import, draw, modify, measure angles, snap to intersections, and export CNC-ready DXF files right from your phone.
78. Tolerance stack mini game - Race the clock to inspect parts! Quickly compare measurements against tolerances and choose to accept, rework, or scrap
79. Now you can draw lathe CAD profiles and turn the CAD into a rough and finish canned cycle with or without cutter radius compensation.
80. Involute spline data per ISO 4156
81. G-code program simulator
82. Spur Gear data
83. Indexable Insert Catalog

### 1.2.217 — 2026-07-03

The Lathe Cutting Speed feature now includes an advanced Turning Feed & Depth of Cut engine. Select your insert shape, set your workholding and tool hangout conditions, and get smarter recommendations for feeds, speeds, and depth of cut.

The app now includes the following features:


1. Thread Mill Program Generator  
2. Slitting Saw Speed and Feed Calculator  
3. Gauge Block Stack Calculator  
4. Keyway Broach Program Generator  
5. Height Over Ball Calculator for Countersinks and Taper Bores  
6. Knurl Calculator  
7. ISO Fits and Tolerance Calculator  
8. Countersink & Taper Bore Measurement Over Ball  
9. Lathe Cutting Speed & Feed Calculator  
10. Lathe Feed Rate Conversions  
11. Lathe Groove Cut-Off Cycle Time  
12. Lathe Rough Pass Cut Time  
13. Lathe Spindle Speed Conversion  
14. Lathe Taper Programming  
15. ACME & Stub ACME Threads 
16. Whitworth Thread Data (BSF & BSW)
17. Special UN & Metric Thread Sizes with Anodize & Plating Allowance  
18. UNC, UNF, UNEF, UNJ, UNM, UNR, UNS, and UN Threads  
19. M Profile Threads  
20. NPT Threads  
21. STI Threads  
22. Tap Drill Calculator  
23. Thread Data and Thread Over Wire Information  
24. Thread Milling Calculators  
25. Tapping Speed Calculators  
26. Adaptive Feed Control  
27. Cusp Height Ball Mill Calculation  
28. Ball Endmill Effective Diameter Calculation  
29. Mill Feed Rate Conversion  
30. Material Removal Rate Calculation  
31. Horse Power Calculator  
32. Radial Chip Thinning Calculation  
33. Mill Cutting Speed Calculator  
34. Endmill Runout Calculation  
35. Center Drill Dimensions  
36. Drilling Calculators and Drill Chart  
37. Gun Drill Calculators  
38. Arc Calculators  
39. Bolt Pattern Calculators  
40. Machinist Quiz  
41. Custom Macro Variables  
42. G-Codes and M-Codes Reference  
43. GD&T Learning Center  
44. Geometric Calculators  
45. Sine Bar Calculation  
46. Hardness Conversions  
47. Material Property Search with SFM Data  
48. Socket Head Cap Screw Hole Dimensions  
49. Surface Finish Calculators  
50. Thermal Expansion Calculator  
51. Tool Wear Information  
52. Triangle Solver  
53. True Position Calculators with MMC / LMC bonus tolerance adjustment
54. Unit Converter  
55. Material Weight Calculator  
56. Scientific Calculator  
57. Grinding Equivalent Diameter Calculation  
58. Grinding Grit Size Conversion  
59. Plunge Grind Calculations  
60. Grind RPM Cylindricity Error Calculation  
61. Grind Wheel and Workpiece Speed Calculation  
62. Surface Grind Calculations  
63. Virtual Machining Assistant
64. Reaming Speeds and Feeds
65. Deflection Calculator for Boring Bars
66. Involute Spline dimensional Data per ANSI B92.1 with over wire measurement limits
67. SAE Spline dimensional Data per SAE J499a
68. G76 Lathe thread program creation
69. G84 Tap cycles can now be selected from the thread section
70. G81, G82. G83, & G73 Drill canned cycle creation
71. Rectangular hole patterns & BHC pattern Coordinates can now be exported to Drilling & Tapping cycles
72. Coolant Concentration Calculator
73. C-Axis Rotational Feed Conversion Calculator
74. Bandsaw cut time calculator
75. Link to Desktop - Use your Apple subscription to unlock access to the Web app: www.CNCmachinistCalculatorUltra.com
75. Machinist Tip of the Day - Over 1500 tips for machinists to be saved or shared
76. Machining Formula Library - we’ve added 172 machining and metalworking formulas to the app.
77. 2D CAD & DXF Generator -  You can now import, draw, modify, measure angles, snap to intersections, and export CNC-ready DXF files right from your phone.
78. Tolerance stack mini game - Race the clock to inspect parts! Quickly compare measurements against tolerances and choose to accept, rework, or scrap
79. Now you can draw lathe CAD profiles and turn the CAD into a rough and finish canned cycle with or without cutter radius compensation.
80. Involute spline data per ISO 4156
81. G-code program simulator
82. Spur Gear data
83. Indexable Insert Catalog

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All apps by Shane Anderson: https://appshunter.io/developer/1037668280

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