Heller 21309 7 990 5% Cobalt 6.8mm x 109mm HSS-CO Jobber Twist Drill (Single Bit)

Premium HSS drill bit for the toughest Jobs in stainless steel and metal

The premium solution for the toughest challenges in stainless steel and metal. The HSS-CO Cobalt is made of a special HSS steel with a 5% cobalt content. Precise response when positioning the bit due to its split point and 135° point angle as well as excellent dimensional accuracy also characterize this drill bit. The HSS-Co Cobalt also scores with its excellent concentricity acc. to DIN 1414

• Unbeatable in high-alloy steel and stainless steel - the perfect solution for the most challenging drilling
• Made of special HSS steel with 5% cobalt for extremely long life
• Pinpoint centring thanks to split point grinding and 135° point angle
• Precision tool as per DIN 338 RN for outstanding dimensional accuracy of the hole
• Excellent concentricity as per DIN 1414