A pack of 5 general purpose 12.5mm TiN (titanium nitride) coated HSS standard twist drill bits, ideal for use on softer metals, wood and plastic. The TiN coating extends the drill bit life and allows it to be run faster than standard HSS drill bits. Diameter: 12.5mm. Suitable for general purpose applications, including: copper, iron, magnesium, mild steel, wood, plastic. TiN coated high speed steel, roll forged with 118� point. DIN 338. Part of a range of HSS TiN coated drill bits in metric sizes from 1.0mm - 13.0mm (Part Nos. 32965 - 32992).