How to Stop Stripping Screw Heads

Step 2: Square Off the End of the Driver with Disc Sander

Turn the disc sander on and then using the table to rest the drill on, hold the drill at a 90 degree angle to the disc sander face and carefully flatten the point off of the driver end.

Comments

[Dr Qui]

You should run the drill/driver when holding it against the sander/grind stone. This will give you a squarer finish with hopeful no need to do any filing at all.