The 3-1/8″ Bi-Metal Hole Saw with Mandrel and Pilot Drill is manufactured with a heavy-duty backing plate for superior rigidity. M3 high-speed steel heat-treated teeth are electron beam welded to the blade body for strength and consistent blade hardness. 4/6 variable tooth pitch gives efficient and safe cutting of metal, plastic and wood. EZE Slot is designed for quick and easy plug removal on all blades with a diameter of 1-3/4″ (45 mm) and larger. Hole saw includes screw in mandrel and pilot drill.SpecificationsManufactured with a heavy-duty backing plate for superior rigidity4/6 variable tooth pitch gives efficient and safe cutting of metal, plastic and woodDesigned for quick and easy plug removalHole Saw Diameter: 3-1/8″ (79 mm)Cutting Depth: 1-3/4″ (45 mm)Material: Bi-MetalHole saw includes screw-in mandrel and pilot drill
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