Languages
English,French,German,Japanese,Korean,Portuguese,Russian,Chinese,Spanish
About this app
This is an offline utility app for thread tap drill lookup, tapping depth calculation, drill size reference, and local project checklist management. The app does not require login, does not connect to the internet, and does not collect or upload any user data. All records remain stored locally on the user's device.
Screenshots
Features
- Thread Specification Library: Built-in common metric coarse and fine thread specifications
- Supports quick search by M size, thread pitch, and pilot hole diameter
- Tap Calculation: Calculate recommended pilot hole depth and tap depth based on through hole, blind hole, effective thread depth, and reserved depth
- Drill Bit Reference: Provides millimeter drill bit specifications, approximate substitutes, and common machining allowances
- Material Notes: Save on-site experience remarks for materials such as steel, aluminum, copper, and stainless steel
- Favorites and Projects: Save commonly used specifications
- Record hole positions, quantities, remarks, and processing status by project
- Local Export: Generate processing verification list
- Support local saving and sharing export