Harvey Tool 890670-C3 Woodruff Keyseat Cutter Altin

Product Description

The HARVEY TOOL 890670-C3 is a Woodruff keyseat cutter designed for milling keyseat slots in shafts and bores. It features a 0.875-inch cut diameter and a 0.25-inch cut width, making it suited for standard Woodruff key applications in precision machining operations. The cutter is constructed from brazed solid carbide and coated with AlTiN (aluminum titanium nitride) finish for extended tool life in ferrous and hard materials. With 12 straight teeth and a 3/8-inch shank diameter, it mounts directly in standard milling machine collets or holders with a Weldon flat for positive drive. This tool is used by machinists and tool-and-die professionals in CNC and manual milling environments.

This keyseat cutter is suited for cutting Woodruff keyseats in shaft diameters where a 0.875-inch cutter diameter and 0.25-inch slot width are required. Straight-tooth geometry provides clean, controlled cuts in steel, stainless, and other ferrous alloys. The AlTiN coating adds heat resistance, making it appropriate for higher-speed milling passes without lubrication in many applications. The 3.25-inch overall length provides adequate reach for typical shaft setups on vertical milling machines and CNC machining centers.

Key Features

• 0.875-inch cut diameter and 0.25-inch cut width for standard Woodruff keyseat dimensions
• Brazed solid carbide construction for rigidity and wear resistance
• AlTiN coating for enhanced heat resistance and extended tool life in ferrous materials
• 12 straight teeth for clean slot geometry and consistent chip evacuation
• Weldon flat on 3/8-inch shank for positive drive and reduced pullout risk
• 3.25-inch overall length for adequate reach in common shaft milling setups

Compatibility

Designed as an OEM-style replacement and standard-production Woodruff keyseat cutter for use in vertical milling machines and CNC machining centers accepting a 3/8-inch shank with Weldon flat.

Installation Notes

Installation and use should be performed by qualified machinists familiar with milling cutter safety practices. Ensure the machine spindle is fully stopped and locked out before mounting or removing the cutter. Secure the shank in an appropriate collet or end mill holder, tightening the Weldon flat set screw to prevent axial pullout during cutting. Follow the cutter manufacturer speed and feed recommendations for the specific workpiece material and do not exceed rated parameters.