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.
10 pieces. packaged.
Article Description Package
52-421 1х34 mm 10/500
52-426 1.5×40 mm 10/500
52-427 2х49 mm 10/500
52-428 2.3x53mm 10/500
52-429 2.5x57mm 10/500
52-430 2.7x61mm 10/400
52-431 2.8x61mm 10/400
52-432 3х61 mm 10/400
52-433 3.1x65mm 10/400
52-434 3.2x65mm 10/400
52-435 3.3x65mm 10/400
52-436 3.4x70mm 10/400
52-437 3.5x70mm 10/400
52-438 3.6x70mm 10/400
52-439 3.7x70mm 10/400
52-440 3.8x75mm 10/200
52-441 3.9x75mm 10/200
52-442 4х75 mm 10/200
52-443 4.1x75mm 10/200
52-444 4.2x75mm 10/200
52-445 4.5x80mm 10/200
52-446 4.8×86 mm 10/100
52-447 5х86 mm 10/100
52-448 5.5x93mm 10/100
52-449 6x93mm 10/100
52-450 6.5x101mm 10/100















