The application of titanium nitride (TiN) strengthens the drill blade, making the drill much longer. Manufactured by profile grinding from high-quality HSS steel with a hardness of 64-64 HRC. This provides a small value of axial and radial runout. Thanks to the alloy with the addition of 6% Tungsten and 5% Molybdenum, the drill is able to withstand high temperatures, and 4% Chrome and 2% Vanadium in the composition prevent drill corrosion, prolonging the life of the product. Cross-shaped sharpening angle 135 degrees, class accuracy A1. Designed for drilling holes in carbon and alloy steels, gray and ductile irons, non-ferrous metals and plastics. Material: high speed steel. Packing: hanging plastic box. 5 pieces. packaged.
Article Description Package 52-451 7х109 mm 10/100 52-452 7.5x109 mm 10/100 52-453 8x117 mm 10/100 52-454 8.5x117 mm 10/100 52-455 9х125 mm 10/40 52-456 9.5x125 mm 10/40 52-422 10x133 mm 10/40 52-423 11x142 mm 10/30 52-424 12x151 mm 10/30 52-425 13x151 mm 10/30