Mapal MEGA-Countersink (COS110) Unequally Split 3-Blade Long Shank COS110-1240-335C-SP345-L 1 Piece

Catalog number: COS110-1240-335C-SP345-L Features: ●By adopting an unequally divided blade (patent pending), cutting resistance is greatly reduced and burrs and thread crushing are prevented. ●Vibration is suppressed and surface roughness and roundness are improved. Applications: ●Workpiece: carbon steel, alloy steel, stainless steel, cast iron, light alloy. Specifications: ●Effective blade diameter (mm): 12.4 ●Tip diameter (mm): 2.8 ●Total length (mm): 108 ●Shank diameter (mm): 8 ●Tip angle (°): 90 ●Surface treatment: Special Tin coating ●3-blade Material/Finish: ●High-speed steel (HSS)