New GARANT MasterTap

March 05,2018

The Hoffman Group has been garnering attention with the "GARANT Master" tool family since the summer of 2015. A universal high-performance tap has been added to the product family for high-performance cutting. The new GARANT MasterTap is the result of a fundamentally new development concept for the design of universal taps. The tool achieves outstanding process reliability with high efficiency in a much wider range of materials – including steel, stainless steel, aluminum, brass and cast iron – than previous universal taps, according to the company.

The key to the unique versatility of the GARANT MasterTap is its ability to effectively remove chips. This special feature is due to a new cutting-edge geometry, as well as optimized flutes, which facilitate reliable removal of the chips. Winding chips and loose swarf are consistently avoided.

When reversing in blind-hole machining, the GARANT MasterTap ensures an extremely reliable process as the chips are sheared off in a targeted manner via the specially designed tooth back and the chip roots are smoothed – for various materials such as steel, stainless steel, aluminum, brass and cast iron. The strengths of the tool shine in particular when machining high-strength steel materials thanks to its deliberately rounded cutting edges. The rounding also ensures a defined and continuous wear behavior without breakouts and thus for a longer service life.

To achieve particularly high performance and longevity, the Hoffmann Group chose a high-quality HSS-E-PM cutting material and an AlTiX high-performance coating for the production of the new GARANT MasterTap. The special ultrasmooth AlTiX coating protects against premature wear and allows high cutting speeds, even in Al-wrought alloys, because the low friction values ​​prevent material sticking and thread corrosion. Thanks to its special guide thread, the tool achieves precise results without axial slicing even in ductile copper alloys.

The new GARANT MasterTap is the latest tool in the "GARANT Master" product family of high-performance tools. The product family already includes two solid-carbide drills, GARANT MasterSteel SPEED and FEED, a classic four-bladed milling cutter, and the GARANT MasterSteel SlotMachine, GARANT MasterSteel PickPocket solid carbide mills and the GARANT MasterSteel finishing cutters.

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.

  • blind-hole


    Hole or cavity cut in a solid shape that does not connect with other holes or exit through the workpiece.

  • copper alloys

    copper alloys

    Copper containing specified quantities of alloying elements added to obtain the necessary mechanical and physical properties. The most common copper alloys are divided into six groups, and each group contains one of the following major alloying elements: brasses—major alloying element is zinc; phosphor bronzes—major alloying element is tin; aluminum bronzes—major alloying element is aluminum; silicon bronzes—major alloying element is silicon; copper-nickels and nickel-silvers—major alloying element is nickel; and dilute-copper or high-copper alloys, which contain small amounts of various elements such as beryllium, cadmium, chromium or iron.

  • feed


    Rate of change of position of the tool as a whole, relative to the workpiece while cutting.

  • flutes


    Grooves and spaces in the body of a tool that permit chip removal from, and cutting-fluid application to, the point of cut.

  • 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.

  • milling cutter

    milling cutter

    Loosely, any milling tool. Horizontal cutters take the form of plain milling cutters, plain spiral-tooth cutters, helical cutters, side-milling cutters, staggered-tooth side-milling cutters, facemilling cutters, angular cutters, double-angle cutters, convex and concave form-milling cutters, straddle-sprocket cutters, spur-gear cutters, corner-rounding cutters and slitting saws. Vertical cutters use shank-mounted cutting tools, including endmills, T-slot cutters, Woodruff keyseat cutters and dovetail cutters; these may also be used on horizontal mills. See milling.

  • swarf


    Metal fines and grinding wheel particles generated during grinding.

  • tap


    Cylindrical tool that cuts internal threads and has flutes to remove chips and carry tapping fluid to the point of cut. Normally used on a drill press or tapping machine but also may be operated manually. See tapping.