HSS Annular Cutter Weldon Shank Broach Cutter Magnetic Drill Bit for Metal Sheet

HSS Annular Cutter: 

1.Made of high quality & super tough high speed steel with multi-cut geometry for ply-cutting and lower friction to reach better endurance and less breakage ;

2.Suitable for steel (such as T-brackets, large sheets), cast iron, non-ferrous and light metals;

3.Optimised cutting edge geometry for increased cutting performances and reduced cutting forces;

4.The effective cutting angles are designed for universal use in various sorts of steel;

5.Improved removal of chips thanks to U-shaped recesses. The specific geometry of the recess reduces the thermal load on the HSS core drill as the heat created in cutting is removed with the chips to a very great extent;

6.Reduction of the friction between the HSS core drill and the workpiece thanks to optimised spiral-shaped guide chamfers;