IRWIN® HSS Cobalt Drill Bit Set, 15 Piece
IRWIN® 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 in significantly extended life. It has an attractive golden tempered surface finish.
This 15 Piece Set contains the following sizes: 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 9, 10mm.
Number reviews: 1
Overal rating: 5
Review for IRWIN® HSS Cobalt Drill Bit Set, 15 Piece by DAJ
24th June 2023
A lovely set of bits. I’ll loose more than I break of these.
Handy storage and lasts a long time.
Clean cuts and long lasting bits, stay sharp for a long time.
Usually used on mdf, chip board and aluminium so it’s gonna last me a while.
No questions
