High performance multi-material big gullet tungsten carbide hole cutters in sizes from 5/8- to 6 3/4-in. diameter and 2 3/8-in. cutting depth. Cut holes 10 times as fast and three times as large using ...
There are three tool options to consider when drilling large-diameter holes in thick steel: twist drill bits, hole saws and annular cutters. 1. Twist drill bits. Especially in steel thicker than ¼", ...