MechSpec
Machining Parameters
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MechSpec is your pocket engineering reference for machining and mechanical design. Browse **28 categories and 370+ standards-based data sheets** — fasteners, bearings, gears, fits & tolerances, materials, welding, CNC codes, flanges & piping, springs, couplings, lubrication and more — all backed by **ISO / JIS / DIN / GB** international standards.
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What's New in MechSpec
1.0
August 28, 2026
