Milwaukee 3-Piece Cobalt Step Drill Bit Set. See It . What We Like. Bits sized in 1/32-inch and 1/16-inch increments ; ...

Includes one drill bit with 17 steps, up to a 1-1⁄8-inch diameter; ... When drilling steel or other hard metal, ... Diablo Impact Strong Step Drill Bit Set. $90 at ACME Tools.

Step bits function as multiple drill bits in a single tool. Instead of a cylinder, these are cone-shaped, with a distinctive stair-step profile. Each "step" is one drill size larger than the next.

The DeWalt 14-Piece Cobalt Alloy Steel Drill Bit Set is just $29 on Amazon. Shoppers appreciate that they’re durable and precision-engineered.

The mild steel of the hammer makes it hard to keep an edge, so [Jody] pulled out his TIG welder and laid down a bead on the cutting edge using an old drill bit as a fill rod. The video below shows ...