3-in-1 box HSS – complete set for thread cutting M3 – M12

The complete set includes the following three sets for cutting internal threads:

Twist drill set DIN 338 type N, HSS – 19 pcs. (Ø 1.0 - 10.0 mm x 0.5 mm increasing)
Powerful, ground standard twist drill made of high-speed steel. The fully ground twist drill has precise concentricity. Thanks to its cross-ground tip, this drill has good centring and requires low feed force.

Machine tap set M DIN 371 / 376 form B with progressive tap HSS - 7 pcs. (M3 | M4 | M5 | M6 | M8 | M10 | M12)
Machine tap made of high-speed steel. For through threads and blind holes in unalloyed steels with a strength of up to 800 N/mm².
The thread is cut in a single operation. High-speed steel, best known as high-speed steel, refers to a group of alloyed tool steels with up to 2.06% carbon content and up to 30% alloying elements such as tungsten, molybdenum, vanadium, cobalt, nickel and titanium. HSS materials are characterised by high hardness, wear resistance and heat resistance up to 600°C. HSS tools are less sensitive to impacts and vibrations, which can quickly lead to breakage in harder cutting materials.

Countersink set DIN 335 type C 90° HSS - 6 pcs. (Ø 6.3 | 8.3 | 10.4 | 12.4 | 16.5 | 20.5 mm)
For burr-free and chatter-free countersinking, deburring and countersinking. Best results at low cutting speeds.