This Heller cobalt steel drill bit has a diameter of 1.0 mm, is 34 mm long, and has a working length of 12 mm. The Heller HSS-Co steel drill bit features a 135-degree tip and is suitable for demanding drilling in high-alloy steel and stainless steel. A cobalt drill must be cooled with drilling oil during use.

The HSS-Co cobalt drill bit is made from special HSS steel with a 5% cobalt content. Its precise starting behavior is enhanced by a cross grind and a 135-degree angle, as well as excellent dimensional accuracy. The HSS-Co cobalt drill bit also excels with high roundness accuracy according to DIN 1414.

This drill bit is suitable for cast iron, iron, stainless steel, non-ferrous metals, and steel, among others.

• Unmatched in high-alloy steel and stainless steel, the perfect solution for the most demanding drilling tasks
• Made from special HSS steel with a 5% cobalt content for extreme durability
• Precise starting behavior due to cross grind and 135-degree tip angle
• Precision tool according to DIN 338 RN for excellent dimensional accuracy of the hole
• High roundness accuracy according to DIN 1414

The drill bit has a cylindrical shank, making it suitable for quick-change chucks or gear chucks.