Lenox 1779774 Hole Saw Arbor With Pilot Drill Bit; 1/2 Inch Larger, Hollow Hex Shank, 1/2-20 Inch Thread, For 9L - 19L Arbored 9/16 - 1-3/16 Inch Hole Saws and All Your Drilling Needs

Detailed Description: Lenox® Hole saw arbor of size 1/2 Inch, large chuck size has an adjustable split point pilot drill bit for faster penetration and less walking. It has hardened carbon steel construction for added durability. Arbor has hollow hex shank size of 1/2-Inch. It is ideal for 9/16 - 1-3/16 Inch hole saws. It is suitable for 9L - 19L arbored hole saws and all your drilling needs.