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The SECO 63005915 is a rectangular cobalt tool bit blank ground to WKE45 material grade, designed for machinists and toolroom professionals who grind their own cutting tools to custom profiles. Measuring 0.125 inches wide, 0.625 inches high, and 6 inches in overall length, this blank provides the raw stock needed to fabricate single-point lathe tools, boring bars, parting tools, and other custom-profile cutters. WKE45 cobalt high-speed steel offers elevated heat resistance and hardness retention compared to standard M2 HSS, making it well suited for interrupted cuts and tougher workpiece materials.
This tool bit blank is intended for use in manual and CNC turning, boring, and specialty machining operations where a standard insert geometry does not meet the application requirement. Toolroom machinists, maintenance shops, and production facilities that grind their own tooling stock will find this blank appropriate for cutting ferrous metals, stainless steel, and other materials that benefit from cobalt HSS. The rectangular cross-section simplifies clamping and grinding setup on a surface grinder or tool-and-cutter grinder.
Designed as a general-purpose cobalt HSS tool bit blank suitable for use in standard toolroom grinding operations wherever a 0.125 inches by 0.625 inches rectangular blank cross-section is specified.
Grinding and shaping of tool bit blanks should be performed by a qualified machinist using appropriate surface or tool-and-cutter grinding equipment with adequate wheel guards in place. Eye protection and proper grinding wheel selection for cobalt HSS are required. Ensure the workpiece is securely clamped or fixtured before grinding to prevent movement that could cause injury or an out-of-tolerance cutting edge. Follow applicable shop safety standards when handling freshly ground tooling edges.
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