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?

We used the DD750X sharpener on black oxide, titanium nitride, cobalt, and carbide-tipped drill bits and it worked perfectly on every material, although it did grind away the coating on cheaper bits.

Learn how to sharpen knives, scissors, drill bits, chisels, mower blades, and more at home with this step-by-step ...

We may receive a commission on purchases made from links. If you're a professional craftsperson or even just an ambitious do-it-yourself devotee, then you know that a cordless drill is one of the most ...

Sharpening a drill bit is rarely a second thought for most DIYers. It's straight out of the case, into a chuck and start drilling. But drill bits are not indestructible and are prone to wear and tear ...

An image of a man grinding a drill bit on a bench grinder - Best_Stocker/Shutterstock If you're a professional craftsperson or even just an ambitious do-it-yourself ...