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This Bosch HSS-TiN Step Drill Bit drills from 6mm to 30mm, so one bit covers a useful spread of small to medium hole sizes in thin materials. It suits jobs where you need to open up existing holes or drill clean round holes without swapping bits. The split-point tip starts easily without pre-punching, and the CNC ground spiral flute clears chips well and keeps vibration down for even drilling. Axial and radial relief grinding gives smooth, burr-free results in non-ferrous metals, sheet plastic, sheet steel, plastic and stainless steel. Features and Benefits: • Drills several diameters with one bit • Split-point tip for an easy start • CNC ground spiral flute for optimised chip removal • Axial and radial relief grinding for cutting smoothness • HSS with TiN coating for a long lifetime when used with coolant • Laser-marked hole diameters in both spiral flutes • 3-flat shank prevents slipping in the chuck Specifications: Hole Diameter Range: 6mm - 30mm Material: HSS (high-speed steel) Coating: TiN (Titanium Nitride) Shank: 3-flat
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