Tap, Drill and Nut Chart

Greg A Miller

About this app

Please rate this app after trying it out, knowing that people like and use my apps is the only thing that keeps us free app developers going. If there are things you like, or want improved please say so in the comments.


Simple tap and drill chart with nut sizes and clearance holes. Metric and US inch SAE. Shows screw/bolt size, clearance holes, tap drills and nut sizes/hex head size width across flats.

Requires no permissions.

Ratings and reviews

Easy to read chart as on a card in your pocket. But now on your phone. Open and scroll. That's it! Gets the job done for the common sizes of SAE & Metric Machine Threads.

ALL apps by Greg A Miller, are spot on as far as I am concerned......ad free, no hidden "NASTIES 👹", just top quality stuff. Well done Greg...👍✝️👍

It's useful but there are better choices too.