General purpose geometry for drilling in a wide range of operating conditions and materials |
Taper length provides longer overall length and flute length for deeper drilling |
Peck cycles may be appropriate for deep hole drilling |
Black oxide finish provides increased wear resistance and added lubricity |
High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and non-ferrous materials |
Oxide prevents chip building, galling and welding on the workpiece |
Spiral flutes are constructed with a higher flute angle to remove chips more easily |