Twist drill bits. Especially in steel thicker than ¼ ... “Annular cutters are actually designed specifically for use with magnetic drills with automatic lubrication,” Carroll says.

But rather than toss a heavy-duty drill that had ... with some body filler, a bit of sanding, and a coat of his signature orange spray paint. When he built his magnetic vise, [Workshop From ...

Their magnetic vise, designed for a drill press but probably a great choice for securing work to a milling machine, grinder, or even a CNC router, has a simple but sturdy steel frame. Two separate ...