HSSE-PM

3bř. conical countersink made of cobalt sintered steel, finely ground with CBN disc Maximum diameter: according to the selected variant Minimum diameter: see product description for selected variant Clamping shank: see product description for the selected variant, with three anti-rotation surfaces Edge angle: 90st. Overall length: see product description for selected variant Coating: BLUE-TEC, increases the life of the countersink when cutting with very limited cooling (spray, paste), as well as when cutting dry Material: HSSE-PM - sintered powder cobalt high speed steel Standard: DIN335 C Usage: Alloy steel with tensile strength up to 1400N / mm2 Stainless steel with tensile strength up to 900N / mm2 Gray cast iron Aluminum alloys with silicon content> 10% Copper, brass, plastics Hardox, Hastelloy, Inconell, Nimonic and other special alloys Features: Excellent chip evacuation, cutting edge, resulting surface without scratches, excellent tool-hole centering The countersink grooves are ground with a CBN wheel, which makes the cutting edge sharper and smoother compared to conventional countersinks where the grooves are milled. The cutting edge is always the highest point of the diameter, ie during countersinking the material does not rub against the wall of the countersink, which reduces the required cutting force and also reduces the heat generated -> which increases the service life of the countersink.

Set of 6 three-edged countersinks made of sintered steel, with three flats against rotation in the drill 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: HSSE-PM - sintered powder cobalt high-speed steel Coating: BLUE-TEC - increases tool life, ideal for dry machining or with a minimum of lubricant Standard: DIN335 / DIN335C The cylindrical shank has 3 flats preventing rotation in the chuck - high efficiency Karnasch countersinks are precisely ground with a CBN wheel, which it is guaranteed 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.

Set of 5 three-edged countersinks made of sintered steel, with three anti-rotation surfaces in the drill Angle: 90° Set contents: 6.3mm (stem 5mm) 10.4mm (stem 6mm) 16.5mm (stem 10mm) 20.5mm (stem 10mm) 25.0mm (stem 10mm) Material: HSSE-PM - sintered powder cobalt high-speed steel Coating: BLUE-TEC - increases tool life, ideal for dry machining or with a minimum of lubricant Standard: DIN335 / DIN335C 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 deepening 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.