Hole Saw 1-3/4 Inch(45mm) for Wood, Plastic Board, Ceiling,Drywall, and Metal Sheet - HSS Bi-Metal Hole Cutter with Pilot Drill Bit

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• HOLE CUTTER:The 1-3/4'' HSS hole saws are perfect cutting tools for punching a big hole at wall to fit a vent pipe or an extract fan, for installing recessed lights into ceiling, and also for cable installation.
• SHARP TEETH:The bi-metallic cutting teeth is layered with high speed steel, that increases their hardness and durability, and gives the hole saw excellent cutting ability to punch a clean hole.
• ACCURATE CUTTING:The increased hardness of the carbide technology and optimized tooth geometry allow our hole saws to provide faster and accurate cutting than standard hole saws, the diameter errors of the cut holes are less than a millimeter.
• MORE EFFICIENCY：Each hole saw is designed with slug holes, which can remove the wood chips while cutting, reduce friction heat and improve the efficiency.The fact that less of total amount of material is actually cut, much less power is required, longer battery life of power tools is benefited.
• SMOOTH CUTTING: The high-quality bi-metal blade and variable pitch sharp HSS teeth combine with Non-binding clean edge design ensures smooth and clean cutting of the hole saw blade. The spring on the drill would automatically pushes the disc out of the saw immediately after completing the hole.