Seco 07593 Tool Bit Blank 5/8x5/8x6 in WKE45 Cobalt Square

Product Description

The SECO 07593 is a solid cobalt tool bit blank designed for machinists and toolroom professionals who need to grind or form custom cutting tools. Made from WKE45-grade cobalt high-speed steel, this blank measures 5/8 inches wide by 5/8 inches high with a 6-inch overall length and a square end shape. WKE45 cobalt HSS offers elevated hardness and heat resistance compared to standard M2 high-speed steel, making it well suited for interrupted cuts, tough alloys, and applications where tool life under heat is critical. The square cross-section allows precise grinding to a wide range of tool geometries on a bench or surface grinder.

This tool bit blank is used in machine shops, maintenance departments, and toolrooms where operators grind their own lathe tools, boring bars, fly cutters, or single-point form tools. The 5/8-inch square shank fits standard lathe tool holders designed for that size. It is appropriate for both manual lathe operations and production setups where a custom-ground profile is required. Machinists, tool-and-die makers, and maintenance technicians are the primary installers and users of this type of blank.

Key Features

• WKE45-grade cobalt high-speed steel for improved red hardness and wear resistance
• 5/8 inches x 5/8 inches square cross-section fits standard tool holders of that size
• 6-inch overall length provides ample stock for grinding and regrinding multiple times
• Square end shape ready for custom tool geometry grinding on bench or surface grinder
• Solid cobalt construction throughout — no coating to grind through

Compatibility

Designed as an OEM-style replacement or general-use blank for lathe tool holders and toolroom applications requiring a 5/8-inch square tool bit blank.

Installation Notes

Tool bit blanks are ground to finished tool geometry by a qualified machinist or tool-and-die maker using a bench grinder or surface grinder with appropriate grinding wheels for high-speed steel. Ensure the lathe or machine is powered down and locked out before seating or changing any tool holder. Follow shop safety protocols for grinding, including eye protection and proper wheel guarding. Verify that the finished tool geometry and clearance angles are appropriate for the workpiece material before cutting.