Made by KARNASCH/GERMANY
Suitable for: Steel<130Ksi, Stainless Steel<130Ksi, Grey Cast Iron, Aluminum>10% Si, Copper, Brass, Tin, Plastic GRP/CRP;
The flutes of Karnasch High-Performance countersinks are always CBN ground.
This guarantees: Excellent chip clearance / chatter-free working / scratch-free surface / best centering.
Made of high-alloyed special steel â€žXEÃ¢â‚¬?for considerably longer service life than HSS-Steel.
60Â° Countersinks are particularly suitable for countersinking in threaded core holes and countersinking in the tool making/jig making industry.
Areas of application of countersinks:
Abrasive and hardened steels > 1000 N/mmÂ²
Gray cast iron > 240HB
Titanium and titanium alloys
Cast iron and light metals
Â KARNASCHÂ Countersinks characteristics:
3 SURFACE SHANK
3 surface shank results in:
- Excellent torque transmission
- No slipping in the chuck
- Significantly higher cutting performanceÂ Â
* CAUTION:Â In preparation. Not yet available for all articles.Â If absolutely necessary, please ask in advance if already available.
RAPID-CUT countersink Art. 20 1760 / 20 1765 already complete with 3 surface shank. Carbide countersinksÂ Art. 20 1755 are supplied with cylindrical shank. These countersinks are mainly used in HIGH-TECH machining on CNC machines with shrink chucks. Only the cylindrical shank is suitable for this purpose.
DIAMETER RELIEF ANGLE
- Every diameter is given a clearance angle at its circumference.
Result:Â The largest cutting diameter is thus always the highest point.
AXIAL CBN RELIEF GRINDING
Result:Â Clear cut with low heat generation.
CBN RELIEF GRINDING
Radially adapted CBN relief grinding according to the diameter.
Result:Â The cutting edge is always the highest point in the diameter.
CBN DEEP-GROUND FLUTES
CBN deep-ground flutes result in considerably higher burr clearance and sharpness compared to milled flutes. This results in significantly higher cutting performance and tool life.