Seco 01343 Tool Bit Blank Cobalt WKE45 Square 4mm

Product Description

The SECO 01343 is a solid cobalt tool bit blank ground to a square end shape and intended for use by machinists and toolroom professionals who need to grind custom cutting geometries. Manufactured from WKE45-grade cobalt high-speed steel, this blank measures 4 mm wide by 4 mm high with an overall length of 100 mm. The cobalt alloy content improves heat resistance and edge retention compared to standard high-speed steel, making it well suited for interrupted cuts and harder workpiece materials. The blank arrives unground on the cutting end, giving the user full control over rake, relief, and nose radius.

This tool bit blank fits applications in manual lathe work, boring operations, and custom single-point tooling setups where standard insert tooling is not practical. It is commonly used in toolrooms, job shops, and maintenance machining environments. The square cross-section suits standard tool holders and grinder fixtures designed for 4 mm blanks. Machinists working with stainless steel, hardened alloys, or high-temperature materials will benefit from the WKE45 grade selection.

Key Features

• WKE45 cobalt high-speed steel construction for improved heat and wear resistance
• Square end shape compatible with standard 4 mm tool-holder slots and grinder fixtures
• 100 mm overall length provides sufficient material for multiple regrinds
• Unground cutting end allows custom geometry to be applied by the user
• Consistent 4 mm x 4 mm cross-section for accurate seating in tool posts

Compatibility

Designed as an OEM-style blank for use in standard 4 mm square tool bit holders and grinder fixtures used in manual turning and toolroom machining applications.

Installation Notes

Tool bit blanks require grinding by a qualified machinist or toolroom technician before use as a cutting tool. Use appropriate personal protective equipment including eye protection when grinding. Secure the blank firmly in a tool grinder fixture and dress the grinding wheel before shaping the cutting geometry. Inspect the finished tool for cracks or burns before mounting in a tool post.