The Deep Cut Bi-Metal Hole saws combine the aggressive tooth form from our previous Dual Pitch Hole Saws, with the new extra cobalt HSS teeth to provide enhanced heat and wear resistance. Featuring a 10mm increase in hole saw depth and aggressive material penetration and kerf clearance, it is the complete multi-purpose hole saw to penetrate deep into metals, wood, plastic, plaster and other materials. Aggressive material penetration and kerf clearance. Ideal for solid materials or tubes of a wall thickness greater than 3mm. 51mm hole saw depth improves cutting performance on tubes, particularly where there is a need to cut through both sides of the tube. New tooth material for enhanced heat and wear resistance and greater product life. 51mm (2”) hole saw depth – requires arbors with an extended length pilot drill . Reduced vibration and smooth cutting action for excellent ergonomics, reducing user fatigueTeeth per Inch (25mm): 4-6Teeth Type: HSSCountry of Origin: CN Specifications Pie