The set includes 4 - 12 mm / 1˝, 4 - 20 mm, 6 - 35 mm milling cutters. Step drill bits will accurately drill the following materials: - iron sheet / no iron sheet, pipes. – copper, brass, aluminium. – stainless steel. - plastic. – max. material thickness 4 mm. – A lubricant or a refrigerant are widely recommend to ensure longer lifetime.
Speed: faster drilling thanks to the more powerful center drill bit, which easily manages to drill through any material. Up to 40% faster than auger bits and e up to 12% faster than our standard selffeed bits