Lenox 5L Hole Saw Arbor w/ Pilot Bit Designed for use with smaller Hole Saws 9/16-Inch to 1-3/16-Inch. Features: • Added durability- Hardened carbon steel for strength through the cross-section. • Starts on contact- Split point pilot drill for faster penetration and less walking. • Simple plug ejection - 7L arbor is designed with sliding pins to easily eject plugs from hole saws. • Easy to use - Power groove shank allows arbors to be used in LENOX® Uni-Drive Quick Change System. No tool changes required (3L, 5L, 6L and 7L).