This utility app helps you determine the correct drill bit size for threaded holes. It supports both inch and metric threads, calculates close and tight fit hole sizes, and provides tables for standard drill bit sizes and pipe information.





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This utility app helps you determine the correct drill bit size for threaded holes. It supports both inch and metric threads, calculates close and tight fit hole sizes, and provides tables for standard drill bit sizes and pipe information.






This app is a specialized calculator designed for woodworkers, offering fraction-native calculations, voice input, and step-by-step cut guidance. It includes tools for board feet, lumber yield, joinery, and wood movement, with project organization and iCloud sync.