IRWIN® HSS Cobalt Drill Bit Set, 15 Piece Bib & Brace Mesh lining keeps the wearer

Mesh lining keeps the wearer cool and regulated

EN ISO 20471:2013 Class 3: Size M ->

Further adjust for temperature with zip-off sleeves

Made with a blend of high-quality materials

The anti-slip mat is waterproof and washable

IRWIN® HSS Cobalt Drill Bit Set, 15 Piece Bib & Brace Mesh lining keeps the wearerIRWIN HSS Cobalt Drill Bits are perfect for drilling stainless steel and other high alloys. Their 135 split point grinding ensures perfect centring and reduced drilling pressure. An industrial quality ground flute ensures high accuracy drilling and fast removal of chips. The drill bit body is manufactured from high quality HSS steel containing 5% cobalt (Co). The added 5% cobalt improves the red hardness (heat resistance) of the drill bit and results