Use Anywhere!    Your Phone, Tablet, and Desktop!
Thread Tap App®
Thread Tap App Logo
Tap Designer on phone, tablet, and desktop
Everything you need in one App!
  • Complete Catalog of Thread Taps and Thread Mills
  • Thread Tap Designer
  • 2D / 3D Design Views
  • Expedited Quotation
  • Tap Hole Size Calculator
  • Engineering Data
  • Partner Branding

Available at:

For your Phone
Tap Hole Size Calculator®
Hole Size Calculator Logo
Tap Hole Size Calculator
The most powerful Thread Tapping Calculator available…always in your Pocket…for free.
  • Recommended Hole Sizes
  • Closest Drill Sizes with Percentage of Thread Calculations
  • Torque / HP Calculator
  • Trigonometric Calculator
  • Partner Branding

Available at the App Stores!

NA Tool Tap App available in iTunes NA Tool Tap App available in Google Play