Seco 02153 Tool Bit Blank WKE45 Cobalt Square

Product Description

The SECO 02153 is a square tool bit blank ground from WKE45-grade cobalt high-speed steel. It measures 10 mm (approximately 0.394 inches) wide by 10 mm high with an overall length of 125 mm (approximately 4.921 inches). Cobalt HSS offers greater red hardness and wear resistance compared to standard M2 high-speed steel, making this blank well suited for machining tough, heat-resistant, or abrasive workpiece materials. Machinists and toolmakers use blanks like this as the starting stock for custom single-point lathe tools, boring tools, and form tools ground to a specific profile for the application at hand.

This tool bit blank is intended for use in metalworking and machining environments, primarily in job shops, toolrooms, and production settings. It is appropriate for turning, boring, and form-tool applications on manual and CNC lathes where the operator or toolmaker needs to grind a custom cutting geometry. The square cross-section and uniform stock dimensions make it straightforward to orient and clamp in a tool holder or tool post while grinding the desired relief and rake angles on a bench or pedestal grinder.

Key Features

• WKE45 cobalt high-speed steel for improved red hardness and extended tool life in demanding cuts
• Square cross-section — 10 mm by 10 mm — for consistent orientation in standard tool holders and grinding fixtures
• 125 mm overall length provides sufficient stock for grinding multiple tool profiles over the life of the blank
• Unground blank format allows machinists to customize cutting geometry to exact application requirements
• Single-piece packaging with a minimum order quantity of one for flexible procurement

Compatibility

Designed as a standard square tool bit blank for use in tool holders, tool posts, and grinding fixtures that accept 10 mm square shank stock. Confirm tool holder bore or pocket dimensions before ordering.

Installation Notes

Grinding of tool bit blanks should be performed by a qualified machinist or toolmaker using appropriate grinding wheels rated for high-speed steel. Secure the blank firmly in a grinding fixture or vee-block to maintain consistent angles during grinding. Use coolant or take light passes to prevent overheating the cutting edge, which can soften cobalt HSS and reduce hardness. Always wear appropriate eye protection and follow shop safety procedures when operating bench or pedestal grinders.