Working with hard metals requires the best cobalt drill bits. We tested top picks to see which bits could bore through the toughest metals. Check out our reviews and discover which one came out on top ...

People have been working metal for so long that the list of tips ... especially one as simple as putting a hardened edge on mild steel using a drill bit as a filler rod. This tip comes to us ...

Twist drill A standard drill bit with two twisted, fluted cutting edges to remove material Wood Flat drill Has a flat face, a pin at the bottom, and two cutting edges. Allows for a flat blind hole ...

A smith may dunk a freshly forged sword into a bucket of oil or water to make the metal harder, or a craftsman with a drill bit might treat it with an extremely cold temperature to keep it from ...

The DeWalt 20V Max Cordless Brushless Hammer Drill is still on sale for $110, a solid $90 discount compared to its full price of $200. The No.1 bestseller ... It has a high bit retention with ...