Manufactured from a high quality M35 grade steel. Ideal for drilling holes into stainless steel and other alloy materials. The 135° split point prevents the bit from drifting and enables faster penetration. Fully ground from solid material.M35 alloyed High Speed Steel (HSS) with 5% Cobalt content.High heat resistance for particularly tough metal drilling.Manufactured to DIN 338.Dimensionally precise.High peformance 135° split point tip readicates the need to pre-drill/centre punch..