Firstly, Walter’s new PCD cutter uses a variety of standard inserts in a single tool that is able to rough up to 8mm deep and finish 0.5 to 0.8mm mill aluminium, and finish mill bi-metal workpieces. The cutter therefore reduces tooling costs by obviating the need for multiple tools for varying operations on different workpiece types.

Next up, designed specifically for universal roughing of a variety of materials, the MC319 and MC320 Advance solid carbide milling cutters feature an innovative castellated profile for even longer tool life. Together with the MC320 Advance and MC320 ConeFit, users have three to eight cutting edges (depending on tool diameter) and an edge cutting to centre.

Meanwhile, the M4000 universal milling system is now available in diameters up to 315mm (compared to the usual 160mm) and with four cutting edges per insert, the universal inserts reduce inventory costs considerably. The design consists of a basic body plus with four adjustable and interchangeable cartridge types carrying Tiger·tec Silver and Tiger·tec Gold inserts.

Finally, the most striking design feature of the next generation Xtra·tec XT (Xtended Technology) shoulder and face milling cutters is the position of the indexable inserts - at a greater radial seating angle and with a larger contact surface than traditional types, to reduce surface pressure in the seat while increasing stability. The larger screw hole cross-section stabilises the inserts and the longer screws hold them in place more securely. The cutter body is also very stable, with more material behind the insert seat.

In addition to greater process reliability, the position of the indexable inserts also allows for the addition of an extra tooth, thereby increasing productivity, and the precise 90° angle of the shoulder milling cutters helps to reduce additional finishing operations.

Also new is the fact that smaller inserts can be fitted and, particularly with the M5009 face mill, this combines small depths of cut with the advantages offered by double-sided Walter Tiger·tec indexable inserts that have eight useable cutting edges instead of the usual four.

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