Metal drill, HSS-G3 (high speed steel), cross-shaped ground, drill spiral covered with several layers of TiAIN (limits the heating of the drill), cylinder butt Din 338 Angle 135° Drill spiral in S-shape facilitates the removal of medium and long drill shavings For non-alloy and alloy steel (up to 1000 N/mm²), cast iron and aluminum Sales = in hanging tube with 2 or 1 piece