As a professional woodworker, I’d much rather use my tools than sharpen them, but I know dull or broken bits are unavoidable. I’ve had a toolbox filled with old drill bits, so it was past time to do ...

The Drill Doctor DD750X drill bit sharpener allows the user to create a custom point angle between 115 degrees and 140 degrees. With this sharpener, the number of relief angle options has been more ...

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The professional-use Drill Doctor 750X sharpens standard twist and masonry bits from 3/32” to ¾”. The custom point angles can easily be set anywhere from 115 to 140 degrees.The adjustable material ...

This article was taken from the March 2015 issue of WIRED magazine. Be the first to read WIRED's articles in print before they're posted online, and get your hands on loads of additional content by ...

Dull drill bits are not usually a type of tool that's worth buying used, unless you can sharpen them yourself. Many companies that sharpen drill bits use precision grinding machines, but there are ...