1. This special HSS-Co material makes the annular cutter stronger, harder and delivers longer life. The HSS Cobalt 5% annular cutters are made of special steel HSS M35 with a percentage of cobalt for greater heat resistance and wear protection
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;
7.Weldon shank fit into a majority of magnetic drills.