The 135 degree split point reduces thrust and eliminates walking at the drill point. The maximum overall length is 6 and the flute length is 3. This makes them short drills in the larger sizes and thus well suited to use in portable electric drills equipped with 1/2 chucks. They are highly effective in tough, high tensile strength materials.
The drills are made with a general purpose flute design which will perform satisfactorily under the widest range of operating conditions and materials..