Unique centering point: precise drilling without gradient, specially ground shoulder cutting cutters precise, circular holes with clean edges Size marking: abrasion-resistant, placed out of the tension range, ensure permanent good readability Extreme 2 - the specialist for free drilling in thin materials, start immediately when tightening - no more grain required For use in alloy and non-alloy steel up to 900 N/mm2 Tensile strength, for drilling sheet and thin-walled profile materials (as well as tubes without front grains), where exact and clean holes are needed. Box contents: 1 x Extreme 2 metal drill bits HSS-G, 11.5 mm diameter, 142 mm total length, 91 mm working length, for use in drills (battery and cable), Weight: 0.1763698096 Pounds, Manufacturer: AmazonUk/3K3AF