Make a Worn Star-Drive Tip Shine Again
My screwdrivers with star-drive, or Torx, tips tend to slip over time because the sharp, small points are easily damaged. To revive a worn-out tip, I just grind off the damaged end with a 1" belt sander or my bench grinder. In a late-night, stores-are-closed, what-am-I-gonna-do pinch, I've even sanded into the flared part of the tip, making it fit the next larger size of star-drive screw.
—Pat Lowry, WOOD® magazine Techniques Editor