IRWIN 10502551 4.5 x 80 mm HSS DIN 388 Cobalt Drill Bit

ManoMano

Diameter: 4.5mm. Working Length: 47mm. Overall Length: 80mm. The Irwin Metric 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.

Zoro Tools

The Irwin Metric 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.

Amazon

A 135-degree split point grinding ensures perfect centring and reduced drilling pressure. Industrial quality ground flute for high accuracy drilling and fast removal of chips. Cobalt alloyed drill bit body provides increased heat resistance and a significantly extended service life. Golden tempered surface resists rust and corrosion. This COBALT drill bit features a working length of 47 Millimetres., Weight: 0.0220462262 Pounds, Manufacturer: Irwin Tools