The shanks can be shortened if required.
â¢Up to 50% higher stock removal rate on steel and cast steel in comparison to conventional double cut burs. With the innovative STEEL cut, PFERD has developed unique burs for steel and cast steel.Carbide Bur - 14° Taper, STEEL cut - 1/2" x 9/8" x 1/4" Shank - SL-4 L6 These burs feature significantly increased aggressiveness and easy control for safe and precise work.â¢The highly accurate concentricity enables precise work free from chatter marks.