HSS Center Drill 60 Degree Countersink 4mm-14mm Angle Bit
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A center drill is a tool used to create center holes on the workpiece end face, typically for positioning before lathe or grinding operations to ensure accuracy in subsequent drilling or turning. Its structure usually includes a pilot drill and chamfer, suitable for machining metals, plastics, and other materials.
High hardness, strong wear resistance The product is made of high speed steel Can process steel, iron, copper, aluminum and so on 60 ° large helix angle design for chip removal
