Seco 07665 Tool Bit Blank WKE45 Cobalt 0.5x0.5x8 in

Product Description

The SECO 07665 is a square tool bit blank machined from WKE45-grade cobalt high-speed steel. Designed for use in manual and CNC lathe toolholders, it serves as raw stock that machinists grind to a custom cutting profile for turning, facing, and boring operations. The blank measures 0.5 inches wide by 0.5 inches high with an overall length of 8 inches, giving the operator generous material to work with when forming and sharpening a tool geometry to suit a specific application. WKE45 cobalt HSS offers elevated heat resistance and edge retention compared to standard M2 HSS, making it well suited to interrupted cuts and harder workpiece materials.

This tool bit blank is intended for machine shops, toolrooms, and maintenance operations where custom ground tooling is required. It is a common choice for apprentice and journeyman machinists who need to form a specific nose radius, relief angle, or rake geometry that is not available in a pre-ground insert system. The square cross-section fits standard right-hand toolholders and lantern-style post holders commonly found on engine lathes.

Key Features

• WKE45 cobalt high-speed steel for improved hot hardness and wear resistance over standard HSS
• Square cross-section at 0.5 inches x 0.5 inches fits standard lathe toolholders
• 8-inch overall length provides ample stock for multiple grinds over the tool life
• Unground blank allows the operator to form any custom cutting geometry
• Consistent material grade throughout the blank supports uniform grinding response

Compatibility

Designed as an OEM-style blank for use in standard square-shank lathe toolholders and lantern-style tool posts that accept 0.5-inch square tool bits.

Installation Notes

Grinding tool bit blanks is typically performed by a machinist using a bench or pedestal grinder fitted with an appropriate aluminum oxide or CBN wheel. Eye protection and proper wheel guards are required at all times during grinding. The workpiece should be secured firmly and presented to the wheel at controlled angles to achieve consistent relief and rake geometry. Consult applicable shop safety standards before grinding operations.