Seco 63002117 Tool Bit Blank WKE45 Cobalt Rectangle

Product Description

The SECO 63002117 is a rectangular cobalt tool bit blank designed for use in custom tooling applications where machinists grind their own cutting geometry to suit specific operations. Manufactured from WKE45-grade cobalt high-speed steel, this blank measures 3 mm in width, 12 mm in height, and 90 mm in overall length. The WKE45 grade delivers elevated hot hardness and wear resistance compared to standard M2 high-speed steel, making it well suited for demanding cutting conditions on difficult-to-machine materials. No cutting edge is pre-ground — the blank is supplied in its finished rectangular form, ready for custom profiling by a tool and die maker or machinist.

This tool bit blank is intended for use in machine shops, toolrooms, and production environments where custom single-point or form tools are required. It is appropriate for manual or CNC lathes, boring bars, and specialty toolholders that accept ground-to-size HSS blanks. The 90 mm length provides sufficient stock for grinding standard turning, threading, or form tool profiles. It is most commonly installed or finished by machinists, tool grinders, or toolroom professionals working to specific print requirements.

Key Features

• WKE45 cobalt high-speed steel grade for improved hot hardness and wear resistance
• Rectangular cross-section at 3 mm width by 12 mm height for precise stock removal when grinding
• 90 mm overall length provides ample material for grinding standard tool profiles
• Supplied as an unground blank — full control over cutting geometry
• Consistent material grade throughout — no surface treatments to grind through

Compatibility

Designed as an OEM-style replacement blank for toolholders and applications requiring rectangular HSS tool bits ground to custom profiles.

Installation Notes

Grinding and finishing of this blank should be performed by a qualified machinist or tool grinder using appropriate wheel grades for high-speed steel. Ensure the grinding wheel is rated for cobalt HSS to avoid work hardening or thermal damage to the cutting edge. Eye protection and proper wheel guards are required during all grinding operations. Power down any machine tool completely before seating or removing tool bits from a holder.