Seco 63007898 Tool Bit Blank WKE45 Cobalt Rectangle

Product Description

The SECO 63007898 is a rectangular cobalt tool bit blank designed for use in custom tooling applications where machinists grind their own cutting geometry. Made from WKE45-grade cobalt high-speed steel, this blank measures 5/16 inches wide by 1/2 inches high with a 3-inch overall length. The rectangular profile and consistent cross-section make it suitable for single-point turning tools, boring bars, and other shop-ground cutters. Machinists and tool-and-die professionals rely on cobalt HSS blanks like this one when standard insert tooling is impractical or when a custom cutting edge geometry is required for a specific operation.

This tool bit blank is used in manual and CNC lathe setups, mill applications, and general metalworking environments. It is appropriate for both production and maintenance machine shops. The WKE45 cobalt grade offers good hot hardness and wear resistance, making it well-suited for cutting ferrous and non-ferrous materials at moderate to high cutting speeds. The 3-inch length provides sufficient stock for grinding and re-grinding the cutting edge multiple times over the working life of the blank.

Key Features

• WKE45-grade cobalt high-speed steel for improved hot hardness and wear resistance
• Rectangular cross-section: 5/16 inches wide by 1/2 inches high
• 3-inch overall length provides ample stock for custom grinding and re-grinding
• Consistent dimensions across the blank for accurate tool height setup
• Suitable for turning, boring, and other single-point cutting applications

Compatibility

Designed as a standard rectangular tool bit blank for use in tool holders and grinding applications that accept 5/16 inches by 1/2 inches section cobalt HSS stock.

Installation Notes

Tool bit blanks require grinding to the desired cutting geometry before use and should be shaped by a qualified machinist using appropriate bench or surface grinding equipment. Ensure the tool holder or toolpost is sized to accept the 5/16 inches by 1/2 inches cross-section before mounting. Always wear appropriate eye protection when grinding HSS blanks, and allow the blank to cool periodically during grinding to prevent thermal damage to the cutting edge.