1PCS Annular Cutter 1.9 Cutting Diameter x 3/4 Inch Weldon Shank 2 Cutting Depth for Drill Press Steel plate

A well-known use for TiN coating is for edge retention and corrosion resistance on machine tooling such as drill bits and annular cutters often improving their lifetime. Compared with uncoated annular cutters TiN coating combines stability at high temperatures with hardness for wear protection can increase cutters life and performance . The cutter is used for drilling through steel. They produce accurate burr-free holes to close tolerances without pre-drilling or step drilling. They can drill a much larger hole and requires less force and time than a standard twist drill bit. The annular cutter offers superior hole making capabilities. It cut faster last longer produces a better hole finish a true round hole with very tight tolerances can be re-sharpened and drills holes with less power and torque. Requirement to cutting rotate speed of annular cutter are also different for different diameters and reasonable cutting rotate speed will prolong service life of annular cutter directly So we recommend:1.The cutting speed:VC=20-25m/min 2.The reasonable rotate feed amount shall be fn=0.08-0.13mm/r 3.The reasonable feed rate shall be vf=36-60mm/min Notes Protect your eyes and belongings away from the drilling cutter.