Punk 4.0mm HSS-g Drill Bit Pack 10

PUNK HSS-G Drill Bits are fully ground hardened with a split point tip, which reduces the need for pilot holes up to 10mm diameter. HSS-G treatment strengthens the bit to deliver up to 40% faster drilling than standard rolled drill bits Precision ground offering up to 40% faster drilling than standard HSS drill bits Self centring 135° split point tip reduces the need to pilot up to 10mm diameter M2 fully ground material Anti-corrosion salt spray tested Suitable for alloy, non-alloy, steel, cast iron, non ferrous metals and hard plastics