There are three tool options to consider when drilling large-diameter holes in thick steel: twist drill bits, hole saws and ... Annular cutters work best in drill presses or mag drills, especially ...

Drill it out, shoot in an extractor, or if you’re lucky, clamp on some Vise-Grips and hope for the best. But when a drill ... will dissolve the steel drill bit without reacting with the brass.

This guide will help you find the best cobalt drill bits for turning metal into Swiss cheese. BEST OVERALL: DeWalt Industrial ...

So it’s always a joy to pick up a new trick, 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 by way of [Jody], aka ...

BEST OVERALL: Drill Doctor 750X Drill Bit ... up to a workable standard, but not for bits that require a shallower angle for drilling hardened steel and other tough materials.

With so many different sizes and types of hardware, having the right drill or driver bit can be tricky. If you’re doing more than one specific project, a variety of bits is your best bet in ...