Karnasch - Germany

Set of 6 extended three-edged countersinks, cylindrical shank Angle: 90° Set contents: 6.3mm ( shank 5mm) 8.3mm ( shank 6mm) 10.4mm ( shank 6mm) 12.4mm ( shank 8mm) 16.5mm ( shank 10mm) 20.5mm ( shank 10mm) Material: HSS-XE - high-alloy cobalt high-speed HSSE steel (68 HRC) Coating: BLUE-TEC - increases tool life, ideal for dry machining or with a minimum of lubricant Standard: DIN335 / DIN335C 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 countersinking 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.

Powerful cutting oil for normal structural steels and non-ferrous metals. dilutable: = 5% oil for normal structural steel and non-ferrous metals Home oil = 10% for higher strength steel and stainless steel Home for heavy duty machining oil can be added to mix up to 50% water