Seco 02148 Tool Bit Blank WKE45 Cobalt Square

Product Description

The SECO 02148 is a square tool bit blank ground from WKE45 cobalt high-speed steel, intended for use by machinists and tool-and-die professionals who grind custom cutting tool profiles. The blank measures 6 mm wide by 6 mm high with an overall length of 160 mm (approximately 0.236 inches wide by 0.236 inches high by 6.299 inches long). WKE45 cobalt-grade HSS provides elevated red hardness and wear resistance compared to standard M2 HSS, making it well suited for interrupted cuts and harder workpiece materials. The square cross-section allows the blank to be presented to a bench or surface grinder and shaped into turning tools, boring tools, form tools, or specialty single-point cutters.

This tool bit blank is used in manual and CNC lathe tooling setups, boring bar configurations, and custom fixture work in job shops, maintenance departments, and production machining environments. It fits standard square tool holders and lantern-style post holders sized for 6 mm shank tooling. Typical applications include grinding single-point turning tools for non-ferrous metals, alloy steels, and stainless grades where cobalt HSS offers a practical alternative to carbide in interrupted or low-speed cutting conditions.

Key Features

• WKE45 cobalt high-speed steel grade for improved red hardness and edge retention over standard HSS
• Square cross-section — 6 mm wide by 6 mm high — ready for bench or surface grinder profiling
• 160 mm overall length provides material for multiple regrinds or extended tool life
• Uniform geometry allows consistent tool presentation in square-shank tool holders
• Suitable for turning, boring, and form-tool applications across a range of workpiece materials

Compatibility

Designed as an OEM-style blank for use in square-shank tool holders and lantern post holders accepting 6 mm tooling; intended to be ground to a user-specified cutting geometry before use.

Installation Notes

Tool bit blanks require grinding to a finished cutting geometry before use; a bench grinder or surface grinder with an appropriate wheel is the standard setup. Secure the blank firmly in a grinding fixture or tool rest to maintain consistent relief and rake angles. Always wear eye protection and ensure the grinding wheel is rated for HSS materials. Power down any machine tool completely and verify zero motion before installing a ground tool bit into a holder.