LENOX® 4L Carbon Steel Hole Saw Arbor with a three-sided shank of size 1/4" or more features an adjustable pilot bit with 3 flats on shank. Arbor is designed to use with 9L-19L hole saw of 9/16 - 1 3/16" size and has a split point pilot drill that facilitates quick penetration.
Features
Added durability: hardened carbon steel for strength
Starts on contact: split point pilot drill for faster penetration and less walking