Some old texts would have you believe that gimlet bits cannot be sharpened. However, this is not the case.
Auger bits had several advantages over center bits and shell bits, so it comes as no surprise that auger bits came to replace the older style bits. Here’s how to sharpen the most common bit found in today’s hand tool kits.
A properly sharpened center bit should bore a clean hole with no chipping around the edge. Here’s how to get there when your bits don’t.