Seco 63007894 Tool Bit Blank WKE45 Cobalt Rectangle

Product Description

The SECO 63007894 is a rectangular cobalt tool bit blank ground to WKE45 material grade specifications. It measures 3/16 inches wide, 5/16 inches high, and 4 inches in overall length. Tool bit blanks are unformed cutting inserts supplied in solid bar stock form, intended to be ground to a custom cutting geometry by the end user or tool room. WKE45 cobalt is a high-speed cobalt alloy known for its toughness and heat resistance, making it well suited for applications where standard high-speed steel would lose hardness under cutting loads. This blank is appropriate for use by machinists, tool grinders, and trade shops requiring custom-profiled lathe or boring tools.

This tool bit blank is used in metal-cutting environments where a custom cutting tool geometry is required. The rectangular cross-section allows the machinist or tool grinder to dress the blank to a specific rake angle, relief angle, or nose radius for turning, facing, boring, or threading operations on a lathe or mill. It is well suited for job shops, maintenance machining, and production environments where off-the-shelf insert tooling does not match the required profile.

Key Features

• WKE45 cobalt material grade provides improved heat and wear resistance over standard M2 high-speed steel
• Rectangular cross-section blank ready for custom grinding to any cutting geometry
• 3/16 inches wide by 5/16 inches high cross-section fits compact tool holders and small-bore applications
• 4 inch overall length provides sufficient stock for grinding multiple tool profiles over the blank's service life
• Solid cobalt construction throughout — no brazed tip or insert pocket

Compatibility

Designed as an OEM-style replacement or direct-use blank for tool holders and grinding setups requiring a 3/16 inch by 5/16 inch rectangular cobalt bit blank in WKE45 grade.

Installation Notes

Tool bit blanks are ground to shape by a qualified machinist or tool grinder before use. Eye protection and appropriate grinding wheels rated for cobalt high-speed steel must be used during dressing. Blanks should be inspected for cracks or grinding burns before seating in a tool holder. Secure the finished bit firmly in the tool post before any cutting operation and verify proper tool height relative to workpiece centerline.