Start immediately after preparation, no more punching necessary. Iron oxide alloy effectively protects against overheating. Abrasion-proof size markings, placed outside the clamping area, ensure permanently good legibility (from Ø 5.0 mm). Circular holes have clean, virtually burr-free edges. The specialist for freehand drilling in thin-walled materials, the centre point enables precise spot drilling without running off. Specially ground shoulder cutting edges mill exact, circular holes with clean edges (from Ø 4.8 mm).

Up to 50% increased breaking strength. The anti-slip shank with three milled clamping surfaces prevents the drill from spinning in the chuck (from Ø 5.0 mm). Constantly increasing core diameter in the direction of the shank provides the highest breakage stability in freehand use (from Ø 4.8 mm).

Application examples: For drilling sheet metal and thin-walled profiled materials (as well as pipes without pre-graining) where precise and clean holes are required. Also very suitable for drilling wood and plastics. For use in alloyed and unalloyed steels up to 900 N/mm² tensile strength.