Holesaw Arbors

There are two types of arbors for holesaws: Type A features a 1/2-20 thread size and is made for holesaws from 3/4"-1-3/16" and Type B features a 5/8-18 thread and is made for holesaws from 1-1/4"-6". Both styles have a 1/4" high-speed steel pilot drill for easy starting in the material.