TC685 Supreme

May 14, 2024
TC685 Supreme Solid-Carbide Orbital Drill/Thread Mill is for Hard Machining of the Core Hole and Thread in One Operation

Walter has introduced the TC685 Supreme orbital drill/thread milling cutter, which reduces hard machining times by producing the core hole, the chamfer  and thread in one operation. The cutter’s face milling geometry is specifically designed for core hole creation and chamfering. After chamfering to start a hole in the workpiece material, the tool creates the core hole and thread using helical interpolation.

Applications include blind-hole and through-hole threads in steel and hardened steel from 44 to 65 HRC (ISO P and H material groups). The tool is designed for producing thread depths of 2 × DN and 2.5 × DN. Areas of use include mold and die making, and general mechanical engineering, among others. The tool is suitable for machining a range of metric thread sizes from M2 to M20.

The TC685 Supreme cutter is a left-hand cutting tool that features a 15° helix angle for excellent chip removal. Cooling with compressed air makes it possible to achieve maximum tool life in materials harder than 50 HRC. Additionally, internal coolant delivery is available for tools that create the M6 size through the larger thread sizes. The tool shank is in accordance with the DIN 6535 HA standard.

Potential benefits include maximum process reliability, a very low cost per thread and a reduction in the number of tool positions that are required. The new geometry and post-treatment process reduces torque requirements and extends tool life. The TC685 Supreme orbital drill/thread milling cutter is a cost-effective solution even for small and medium batch sizes.

The Walter lineup of products consists of three categories to its tools. Supreme indicates the highest level of technology and performance available. Perform tools are products that provide an economical solution with focused importance on price and Advance which indicates product efficiently balanced between price and performance.

Related Glossary Terms

  • blind-hole


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

  • chamfering


    Machining a bevel on a workpiece or tool; improves a tool’s entrance into the cut.

  • coolant


    Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.

  • gang cutting ( milling)

    gang cutting ( milling)

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

  • helix angle

    helix angle

    Angle that the tool’s leading edge makes with the plane of its centerline.

  • interpolation


    Process of generating a sufficient number of positioning commands for the servomotors driving the machine tool so the path of the tool closely approximates the ideal path. See CNC, computer numerical control; NC, numerical control.

  • 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.

  • shank


    Main body of a tool; the portion of a drill or similar end-held tool that fits into a collet, chuck or similar mounting device.

  • through-hole


    Hole or cavity cut in a solid shape that connects with other holes or extends all the way through the workpiece.


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