The 315 system from Horn for internal and external grooving has gained a new range of single-edged, CBN-tipped inserts suitable for hard machining applications. They are available for producing grooves from 1 mm to 3 mm wide and up to 5 mm deep.
The insert seat has a large contact area to direct the cutting pressure efficiently into the holder and the central clamping screw enables maximal tightening of the insert for vibration-free, accurate machining. These properties make the system ideal for counteracting the high forces generated during hard turning. The holder range is available in monoblock design and as a cartridge system for HSK-T and PSC connections.
CBN is the second-hardest material in the world after diamond, unlike which it can be used to machine ferrous metals as no carbon diffusion occurs.