Proto-max Tough Guys Endmill

March 01, 2014
Proto-max Tough Guys Endmill

Walter USA LLC has expanded its "Tough Guys" series of high-performance solid-carbide endmills with the new Walter Prototyp Proto-maxTG (the TG stands for Tough Guys). It is a versatile performer that can be used on steel, stainless steel, cast iron and in many cases on super alloys, according to the company.

The endmill provides excellent chip removal and guarantees sufficient room for the chip removal for slot milling up to 0.9 times DOC. The rear cutting edge has a reinforced core, giving the tool a high degree of stability. The cutter is available with a reduced neck as an option, and is ideally suited to plunging or inclined plunging for deep cavities. In addition, it is also suitable for pocket, contour and shoulder milling. The endmill is available in diameters from 2 to 25mm, with three, four or five cutting edges.

In addition to its performance-enhancing design features, the endmill has an advanced carbide substrate. This substrate provides for an extremely high level of toughness, which is important for counteracting vibration-induced fractures to the cutting edge. An advanced pre-treatment process provides an optimum surface for the tool's new titanium aluminum nitride coating. This new coating helps protect against wear thus increasing tool life. These three features: substrate, cutting edge treatment and coating. These combine to dramatically increase cutting parameters by up to 100 percent.

Related Glossary Terms

  • alloys


    Substances having metallic properties and being composed of two or more chemical elements of which at least one is a metal.

  • endmill


    Milling cutter held by its shank that cuts on its periphery and, if so configured, on its free end. Takes a variety of shapes (single- and double-end, roughing, ballnose and cup-end) and sizes (stub, medium, long and extra-long). Also comes with differing numbers of flutes.

  • gang cutting ( milling)

    gang cutting ( milling)

    Machining with several cutters mounted on a single arbor, generally for simultaneous cutting.

  • milling


    Machining operation in which metal or other material is removed by applying power to a rotating cutter. In vertical milling, the cutting tool is mounted vertically on the spindle. In horizontal milling, the cutting tool is mounted horizontally, either directly on the spindle or on an arbor. Horizontal milling is further broken down into conventional milling, where the cutter rotates opposite the direction of feed, or “up” into the workpiece; and climb milling, where the cutter rotates in the direction of feed, or “down” into the workpiece. Milling operations include plane or surface milling, endmilling, facemilling, angle milling, form milling and profiling.

  • titanium aluminum nitride ( TiAlN)

    titanium aluminum nitride ( TiAlN)

    Often used as a tool coating. AlTiN indicates the aluminum content is greater than the titanium. See coated tools.