MAPAL MEGA-Countersink (COS112) Unequally divided 3-blade flat shank COS112-1900-335C-SP345 1 piece

Catalog number: COS112-1900-335C-SP345 Features: ●Unequally divided blade (patent pending) significantly reduces cutting resistance and prevents burrs and thread damage. ●Suppresses vibration and improves surface roughness and roundness. Applications: ●Workpiece: carbon steel, alloy steel, stainless steel, cast iron, light alloy. Specifications: ●Effective blade diameter (mm): 19.0 ●Tip diameter (mm): 3.5 ●Total length (mm): 63 ●Shank diameter (mm): 10 ●Tip angle (°): 90 ●Surface treatment: Special Tin coating ●3-blade Material/Finish: ●High-speed steel (HSS)