Seco 02002 Cobalt Tool Bit Blank 0.25x0.25x2.5 Inches WKE45

Product Description

The SECO 02002 is a square tool bit blank machined from WKE45 cobalt high-speed steel. Measuring 0.25 inches wide by 0.25 inches high with a 2.5-inch overall length, this blank provides a solid starting point for grinding custom single-point cutting tools, form tools, and lathe bits. The cobalt-grade steel offers elevated hardness and heat resistance compared to standard M2 HSS, making it well suited for cutting harder workpiece materials. Machinists and toolroom technicians grind these blanks to the precise profile and relief angles required for a given operation.

This bit blank is used in toolroom and production machining environments where custom-ground cutting tools are required. It is a common choice for manual lathes, shapers, and boring setups where a standard insert-style tool will not achieve the needed geometry. The 0.25-inch square cross-section fits standard 0.25-inch tool holders and quick-change tool posts commonly found on bench and engine lathes in light manufacturing, maintenance, and trade school settings.

Key Features

• WKE45 cobalt high-speed steel for improved heat and wear resistance over standard HSS
• Square cross-section at 0.25 inches wide by 0.25 inches high for consistent grinding stock
• 2.5-inch overall length provides adequate shank for secure tool-post clamping
• Unground blank allows full custom profile grinding to match specific cutting applications
• Solid bar construction with no brazed joint or coating to interrupt grinding

Compatibility

Designed as a standard-geometry replacement or stock blank for 0.25-inch square tool holders and quick-change post systems used on manual engine lathes and similar machine tools.

Installation Notes

Grinding tool bit blanks is performed by a qualified machinist or toolroom technician using a bench or pedestal grinder fitted with an appropriate wheel. Always wear face protection and follow shop safety procedures when grinding HSS or cobalt blanks. Ensure the tool holder set screws are fully tightened and the blank is seated securely before initiating a cut. Do not use a blank that shows grinding cracks or surface damage.