BB NC Spot Drill Carbide Stub Center Bit 60 90 120 Degree 1-20mm Chamfer Location Prepare Guide Pilot Hole CNC Machine Tool Tip Angle:90° which is 2-3 times that

which is 2-3 times that of ordinary cutting tools

5 D6 15  50  3T 6R0

3 D4 10  50  4T 8  3R0

☆ Recommended material and cutting speed Vc[m/min]

BB NC Spot Drill Carbide Stub Center Bit 60 90 120 Degree 1-20mm Chamfer Location Prepare Guide Pilot Hole CNC Machine Tool Tip Angle:90° which is 2-3 times thatBB Spotting Drills 60,90,120 degree drill point. TiN coated HSS: For mild steel and other soft metals. Manual grinding. Solid carbide: Spotting and centering work on NC and CNC machine tools. It is not recommended to use the hand electric drill Suitable for use on steels, stainless steel, cast iron, plastic, brass. It's not only as a center drill but as a chamfer tool as well . For accurate spotting on Machines. Precise drill positioning. Short