A 10 Piece Robust Line Metal Drill Bit Set manufactured from High Speed Steel Cobalt to DIN 338, 135. In diameters 1.0 - 2.0 - 3.0 - 4.0 - 5.0 - 6.0 - 7.0 - 8.0 - 9.0 - 10.0mm. - Suitable for alloyed and non-alloyed steel up to a tensile strength of 1000 N/mm, stainless steel V2A/V4A, cast iron, cast steel, acid and heat-resistant steels - Precision drill bits that are resistant to heat and wear
