I've been thinking about buying one of these but I don't know if they are just a gimmick. Also, if they genuinely work well how good do your bits need to be in the first place to be worth sharpening?

A collection of woodworking drill bits ready to be sharpened - Vladyslav Varshavskiy/Getty Images The tool has a ⅓-horsepower motor driving two grinding wheels at up to 3450 rpm. The wheels have a ...

An image of a man grinding a drill bit on a bench grinder - Best_Stocker/Shutterstock We may receive a commission on purchases made from links. If you're a ...

Up until recently, though, my collection of drill bit sets was so large that I had duplicates and often triplicates of all the bit sizes I commonly used because my older bits were worn out, and in ...

Darex brands include Darex industrial bit sharpeners, Drill Doctor professional and DIY drill bit sharpeners, Work Sharp Outdoor knife and tool sharpeners, and Work Sharp Culinary kitchen knife ...