91 0990HSS-CO DIN 338 RN METAL DRILL BITS COBALT STAINLESS STEEL DRILL BITS Premium HSS drill bit for the toughest Jobs in stainless steel and metal. 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 You will find this product on page 34/35 of the price list. Sheet metal Non- ferrous metals Steel Stainless steel Iron Cast iron