KDG-6000 Drilling Guide - Portable Drill Guide - 6 Hardened Drill Guides - Craft

The Kreg Drilling Guide make it easy to create perfectly straight holes without using a drill press. You can get precisely positioned holes with just a hand drill. Featuring six hardened steel drill guides—from 1/8" to 1/2"—that do the work of holding your drill in position for you.

eBay