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Metal drill with titanium nitride application

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