HSS Cobalt Drill Bit Set, 15 Piece Median S3 hardened jaws for long lifetime

hardened jaws for long lifetime and soft grip handles for optimal comfort

2 x long plastic extension tubes

rich leather uppers

High tensile fencing can be strained tighter than mild steel and therefore requires less intermediate posts

HSS Cobalt Drill Bit Set, 15 Piece Median S3 hardened jaws for long lifetimeIRWIN 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