Seco 63002119 Tool Bit Blank WKE45 Cobalt Rectangle

Product Description

The SECO 63002119 is a rectangular cobalt tool bit blank ground to WKE45 material grade, designed for use in custom tooling applications where machinists grind their own cutting geometries. Measuring 8 mm (approximately 0.315 inches) wide by 12 mm (approximately 0.472 inches) high with an overall length of 160 mm (approximately 6.299 inches), this blank provides a solid cobalt substrate that accepts precision grinding for lathe, boring, and form-tool profiles. It is used by toolroom machinists, tool-and-die makers, and production shops that require a specific edge geometry not available in standard off-the-shelf insert tooling.

This tool bit blank is suited for toolroom and production environments where custom cutting tools must be fabricated in-house. The rectangular cross-section makes it well suited for turning, threading, grooving, and form-relief applications on manual and CNC lathes. Its cobalt WKE45 composition provides good wear resistance and toughness, making it a practical choice for machining ferrous and non-ferrous materials that demand a durable high-speed steel alternative.

Key Features

• WKE45 cobalt material grade offers improved hardness and wear resistance over standard M2 high-speed steel
• Rectangular cross-section (8 mm wide x 12 mm high) simplifies clamping in standard tool holders and vises during grinding
• 160 mm overall length provides sufficient stock for multiple regrind cycles, extending usable tool life
• Blank form allows machinists to grind custom rake, relief, and nose geometry to match specific workpiece requirements
• Consistent ground dimensions support repeatable setup when fabricating matched sets of form tools

Compatibility

Designed as an OEM-style replacement and general-purpose blank suitable for toolroom applications requiring a cobalt high-speed steel rectangle blank in an 8 mm x 12 mm cross-section.

Installation Notes

Tool bit blanks are ground and finished by a qualified toolroom machinist or tool-and-die maker using a bench or surface grinder equipped with appropriate grinding wheels rated for cobalt high-speed steel. Always dress the grinding wheel before use and allow the blank to cool between passes to prevent thermal damage to the cutting edge. Secure the blank firmly in a tool grinder vise or angle plate before grinding to maintain dimensional accuracy. Follow shop safety protocols for grinding operations, including eye protection and proper wheel guarding.