Metal drill bit PROF/Profi 3.6x70mm with titanium coating (pack 10pcs) Cutop 52-438

Titanium nitride (TiN) coating strengthens the drill bit, significantly increasing its service life. Manufactured by profile grinding from high-quality HSS steel with a hardness of 64-64 HRC. This ensures low axial and radial runout. Thanks to an alloy with the addition of 6% Tungsten and 5% Molybdenum, the drill can withstand high temperatures, and 4% Chromium and 2% Vanadium in the composition prevent corrosion of the drill, extending the service life of the product. Cross-shaped grinding angle 135°, accuracy class A1. Designed for drilling holes in carbon and alloy steels, gray and malleable cast irons, non-ferrous metals, and plastics. Material: high-speed steel. Packaging: hanging plastic box. plastic box.