Published by Greg A Miller

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Why should I report an Issue with Tap And Drill Chart Calculator?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
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  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
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About Tap And Drill Chart Calculator

1. Also shows hex nut size and a diagram with the screw threads to check TPI/TPMM and screw diameter.

2. App to calculate charts for various thread percentages for standard SAE and Metric screws.

3. This app requires no permissions.

4. Please rate this app after evaluating it, it is knowing that people use and love my apps that keeps the truly free app developers producing apps.

Tap And Drill Chart Calculator Customer Insights

1. And you can click on your screw size and it lists all possible drill bit sizes, metric, SAE and number, ordered by percentage of thread engagement so you can very easily pick the best drill bit for your tap, or the next best one! Very good app! Thank you!This app is a lifesaver.

2. You can choose the percentage of how tight you want your threads to engage, with a material guide, and it shows the actual hole size you need and the best drill bit sizes.

3. I think the best feature is that you can tap on any section of the chart and cross reference drills to taps and taps to drill sizes.

4. Really usefull but when thin sheet ( or brass/ aluminum )use one lower size of drill.

5. Great app!Excellent! You can choose metric or SAE and it lists every screw size.

6. I see how speaking fractions was ideal but in this day and age 99% of us interface with a computer not the guy standing at machine next to you, If he needs to know what you are thinking hit print and hand him a diagram.Thanks for making this.

7. Gives fantastic resultIt's what it said, Tap And Drill chart, no ads, no bloat.

8. I wish it would close when I click the back button twice.Awesome! Born in US but wish metric had won before my time.

9. Thank you.A great app with one minor issue.

10. We can never get rid of this stupid fraction system but technology makes it a bit more tolerable.Just what I needed.

11. No BS, great app.Nice chart.

Steps to Troubleshoot & Fix Tap And Drill Chart Calculator Issues

1. Fix Tap And Drill Chart Calculator Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart Tap And Drill Chart Calculator: Restarting the app will resolve most errors.
  2. Update the Tap And Drill Chart Calculator App. Here is how:
    1. On Android goto PlayStore » Search for "Tap And Drill Chart Calculator" » Open Tap And Drill Chart Calculator » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Tap And Drill Chart Calculator » click "UPDATE".
  3. Clear Tap And Drill Chart Calculator app cache: Clearing cached data will force your app to retrieve the latest data directly from Tap And Drill Chart Calculator servers.
    1. On Android, goto Settings » Apps » Select "Tap And Drill Chart Calculator" » click Storage » click "Clear Cache".
  4. Check Tap And Drill Chart Calculator app permissions. If any of these permissions required to use your device's features are disenabled, Tap And Drill Chart Calculator might not work.
  5. Uninstall and reinstall Tap And Drill Chart Calculator. If nothing else has worked, completely uninstall Tap And Drill Chart Calculator then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing Tap And Drill Chart Calculator not working


2. Fix Tap And Drill Chart Calculator Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make Tap And Drill Chart Calculator be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to Tap And Drill Chart Calculator not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, Tap And Drill Chart Calculator may not be able to connect to the Internet when running in the background.

Reported Issues