Bosch HSS-AlTiN Step Drill Bit

The 4mm - 12mm Bosch HSS-AlTiN Step Drill Bit is the most compact option in the range, ideal for smaller holes in thin sheet materials. One bit covers several diameters within this span, so you can drill or enlarge holes in sheet steel, stainless steel, non-ferrous metals and plastics without swapping between bits. The split-point tip starts easily with no pre-punching, and the AlTiN-coated HSS construction gives a long working life without the need for coolant. Smooth, burr-free results make it a handy choice for deburring too. Features and Benefits: • Smooth drilling in s