Material Specification For Drilling Jig
Material Specification For Drilling Jig. Kreg R3 vs K4 Jig Comparison Woodworking Tool Guide. Dec 11, 2017 · The Kreg R3 is a two hole pocket jig that is capable of drilling in materials from 1/2 inch to 11/2 inches. Like all Kreg jigs the drill guides are hardened steel and come with a lifetime warranty.