Set of 3 pcs. countersinks 6.3 - 20.5mm 90° HSS-XE BLUE-TEC RAPID-CUT , Karnasch

Set of 6 three-edged countersinks with three anti-rotation surfaces in a drill with improved RAPID CUT geometry

Angle: 90°

Set contents:
6, 3mm (stem 5mm)
8.3mm (stem 6mm)
10.4mm (stem 6mm)
12.4mm (stem 8mm)
16.5mm (stem 10mm)
20.5mm ( shank 10mm)

Material: HSS-XE - high alloyed cobalt high-speed HSSE steel (68 HRC)
Coating: BLUE-TEC - increases tool life, ideal for machining dry or with a minimum of lubricant

Standard: DIN335 / DIN335C

RAPID-CUT - specially made for use with automatic rapid feed
- 30% faster work compared to ordinary countersinks
- o 40% longer life of countersinks

The cylindrical shank has 3 flats preventing rotation in the chuck - high efficiency

Karnasch countersinks are precisely ground with a CBN wheel, which guarantees that the cutting edge of the countersink is always the highest point and the countersink works as it should. This way of grinding also achieves (compared to milled countersinks) that the cutting edge is smoother and sharper - greater efficiency and lifetime of the tool. The result of this grinding is perfect chip removal, trouble-free work, a perfect surface without scratches and a perfectly centered recess.

Supplied in a plastic case.