Cutting tool manufacturer Horn has extended downwards in size its M475 grooving and cut-off milling system. A user could previously select a grooving width of either 5, 6 or 8 mm, but now smaller inserts with a cutting width of 3 or 4 mm are available. In the UK and Ireland, the tools are available via the German manufacturer’s subsidiary in Ringwood, Hampshire.

The M475 system employs precision-ground, indexable inserts with four cutting edges. Positive geometry and a round chip-breaker groove, together with the new RC4G carbide grade, deliver economical, productive machining performance, reports the company. High toughness and hardness enable the machining of steels at elevated cutting speeds. These attributes also serve to increase insert life significantly.

The cutter bodies are available from stock as side, shell and screw-in milling cutters – the two latter variants feature internal coolant supply.

Side milling cutters range in diameter from 80 to 200 mm and have cutting widths of 3, 4, 5, 6 or 8 mm. As shell mills, the tools are available in diameters from 63 to 200 mm and with identical grooving widths. The screw-in cutters are for a groove width of 5 mm and are available in diameters from 40 to 63 mm as standard. The effective number of teeth of depends on tool diameter and ranges from two to 13. Special surface treatment of the tool body offers protection against abrasion from chips.

More information www.phorn.co.uk