PUNK High Speed Steel HSS-Co Drill Bits offer upto 40% faster drilling than standard PUNK drill bits.
High quality HSS/cobalt alloy provides greater rigidity and hardness at higher temperatures
Self-centring 135° split point tip reduces the need to pre-drill/centre punch holes
Offers up to 40% faster drilling than standard PUNK drill bits
Precision ground and anti-corrosion salt spray tested
Suitable for use with harder materials such as stainless steel and cast iron