With the International Tools eco pro hss-e twist drill bit 11.490, you drill accurately and smoothly through tough and hard materials like stainless steel, alloy steel, and cast iron. Thanks to the hss-e alloy containing 5% cobalt, it resists high operating temperatures and maintains sharp cutting performance for longer. The bronzed surface finish reduces friction and heat buildup during heavy-duty cutting. Manufactured to the din 338 standard with a 6.0 mm diameter, a 57 mm flute length, and a 93 mm overall length, its 6 mm cylindrical shank seats securely in any standard drill chuck.