IRWIN 10502546 IW10502546 HSS Cobalt Drill Bit (Din 388, 3.5 x 70-Millimetre)

Product description

• 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 39 Millimetres.