Two multi-edge tool systems have been added by Walter GB to its range of products for grooving and parting-off – the Walter Cut MX, with four cutting edges for parting-off small workpieces up to 12 mm diameter, and the two-edge Walter Cut GX34 for work up to 65 mm diameter.

These additions complement the existing Walter Cut GX24 double-edged grooving inserts for workpieces up to 46 mm diameter. The result is that Walter users can now complete 90% of all grooving applications with standard tools from its catalogue.
Walter’s Standard MX system tools feature insert widths between 0.8 and 3.25 mm for cutting depths up to 6 mm, though the company can provide special sizes and designs – grooving with chamfer, for example – on request via the Walter Xpress service. The Walter Cut GX34 has grooving inserts with widths of 3 or 4 mm for cutting depths up to 33 mm.
By developing the tools, Walter engineers say they have successfully overcome a range of important ‘accepted weaknesses’ with standard grooving tools, including poor chip breaking, chip removal, cooling and securing of the indexable inserts – which is often awkward, imprecise and insufficient.
Parting-off and deep grooving are widely considered particularly difficult processes, and such applications are generally performed with cutting values that are too low, to avoid tool breakage or other problems. According to Walter, these weaknesses have also been eliminated with the new MX and GX systems.
Walter MX tools offers a new approach to clamping, which Walter says is more user friendly and reliable. The tangentially clamped insert aligns itself independently and accurately in the machining direction, while a dowel pin in the insert seat ensures precise and secure fixing.
For further information www.walter-tools.com