1PK Lenox 3006868L Speed Slot Bi-Metal Hole Saw 4-1/4 in

Diameter : 4-1/4 in.; Length : 1.5 in.; Material : Bi-Metal; Usage : Wood and Metal Cutting; Quick-Change System; Speed Slot features a staircase design for easy plug removal; Up to 2X more life in metal cutting; Enhanced tooth geometry- a thin kerf design and an advanced coating contribute to the efficiency of the cutting process; 2X more durable with 50% longer life than previous LENOX hole saws; Increased wall thickness improves durability and minimizes tooth loss; Optimized tooth design penetrates metal with ease; Larger sharper teeth for faster cutting; Use this hole saw with a 2L 3L 6L 7L standard arbor or a 2L 6L snap-back arbor;