Laser 8405 Combination Drill & Tap Bit Set 7pc

6x tap drill bits with 1/4" Hex drive: M3 x 0.5 (max 400rpm), M4 x 0.7 (max 400rpm), M5 x 0.8 (max 350rpm), M6 x 1.0 (max 300rpm), M8 x 1.25 (max 250rpm) and M10 x 1.5mm (max 200rpm). NOTE: The max rpm is a guide for use on wood and plastic only. Supplied with a magnetic bit holder. Length: 60mm. Suitable for drilling and tapping iron or carbon steel plate up to 3mm thick and aluminium or copper plate up to 6mm thick. Bits manufactured from HSS4241 with Titanium-Nitride coating and quick chuck ends. Supplied in a storage case. Spares available, Part Nos. 61871 (M3 x 0.5mm), 61872 (M4 x 0.7mm), 61873 (M5 x 0.8mm), 61867 (M6 x 1.0mm), 61868 (M8 x 1.25mm) and 61869 (M10 x 1.5mm). Note: manual tapping is not recommended, as this will affect the precise concentricity and adversly affect the product performance life.