Seco 02140 Tool Bit Blank WKE45 Cobalt Square

Product Description

The SECO 02140 is a square tool bit blank machined from WKE45-grade cobalt high-speed steel. It measures 6 mm (approximately 0.236 inches) in both width and height, with an overall length of 63 mm (approximately 2.48 inches). Tool bit blanks serve as raw stock for machinists and tool grinders who need to profile a cutting edge to a specific geometry. The WKE45 cobalt grade delivers elevated hot hardness and wear resistance compared to standard M2 HSS, making it suitable for form tools, lathe bits, and specialty cutting applications where heat buildup is a concern.

This blank is intended for use in metalworking shops, toolrooms, and machine shops where custom cutting tools are ground to specification. It suits applications on manual lathes, grinders, and CNC setups requiring a shop-ground tool profile. The square cross-section provides a consistent starting geometry for grinding single-point turning tools, form tools, or specialty profiles. It is typically specified by toolroom machinists, apprentices grinding their own lathe tools, and production shops that prefer in-house tool profiling over indexable inserts.

Key Features

• WKE45 cobalt high-speed steel grade for improved hot hardness and extended tool life in demanding cuts
• Square cross-section at 6 mm x 6 mm provides uniform stock for consistent grinding setups
• 63 mm overall length offers sufficient blank material for grinding and re-grinding multiple edges
• Unground blank format allows full custom geometry profiling by the end user
• Cobalt alloy content resists softening at elevated cutting temperatures compared to standard HSS

Compatibility

Designed as a general-purpose tool bit blank for use in standard tool holders and grinding setups that accept 6 mm square shank stock.

Installation Notes

Tool bit blanks are ground to final geometry by a qualified machinist or toolroom grinder using a bench or surface grinder fitted with an appropriate wheel. Secure the blank firmly in a tool grinding fixture or vise before grinding to maintain accurate angles. Wear appropriate eye protection and follow shop safety protocols when grinding HSS or cobalt stock. Do not use the blank as a cutting tool prior to profiling and honing a proper cutting edge.