Seco 02038 Tool Bit Blank WKE45 Cobalt Square

Product Description

The SECO 02038 is a square tool bit blank ground from WKE45 cobalt high-speed steel, intended for machinists and tool-and-die professionals who grind their own cutting tools to custom profiles. The blank measures 8 mm (approximately 0.315 inches) wide, with an overall length of 200 mm (approximately 7.87 inches), and weighs approximately 0.05 pounds. WKE45 cobalt HSS offers elevated hot hardness and wear 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 the blank to be oriented and ground on any face.

This tool bit blank is used in manual and CNC lathe work, boring, threading, and form-tool applications where an off-the-shelf insert geometry is not available or practical. It is a common choice in toolrooms, maintenance shops, and production environments where machinists grind single-point turning tools, parting tools, or specialty profiles to precise angles. The square geometry suits standard tool holders and lantern-style post holders common on engine lathes.

Key Features

• WKE45 cobalt HSS material grade for improved hot hardness and extended tool life in demanding cuts
• Square cross-section blank allows grinding on any face for flexible tool geometry
• 200 mm overall length provides material for multiple regrinds over the tool life
• 8 mm width fits standard small-bore tool holders and lathe tool posts
• Supplied unground, ready for custom profile grinding by the end user

Compatibility

Designed as an OEM-style replacement or stock blank for use in standard tool holders and grinder fixtures that accept 8 mm square high-speed steel tool bit blanks.

Installation Notes

Grinding tool bit blanks should be performed by a qualified machinist using a bench or surface grinder fitted with an appropriate wheel for high-speed steel. Ensure the grinder guard is in place and personal protective equipment, including eye protection, is worn at all times. Allow the blank to cool frequently during grinding to prevent drawing the temper of the cobalt HSS material. No power lockout is required for the blank itself, but follow standard machine safety procedures when mounting the finished tool in a lathe or mill.