Harvey Tool 67720-C3 Woodruff Keyseat Cutter 0.25in Altin

Product Description

The HARVEY TOOL 67720-C3 is a solid carbide Woodruff keyseat cutter designed for cutting keyseat slots in shafts and mating components. It carries a 0.25 inch cutting diameter and a 0.04 inch cutting width, making it suited for tight-tolerance keyway work where dimensional accuracy directly affects fit and function. The straight-tooth configuration and AlTiN coating allow it to run effectively in ferrous and hard materials. With a 1/4 inch shank diameter and 2.5 inch overall length, it mounts in standard milling chucks or collets on vertical mills and machining centers. Machinists and tool-and-die professionals are the primary users.

This cutter is built for keyseat applications in steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. It fits typical CNC and manual milling setups where Woodruff-style keyseats are required during shaft machining, repair, or custom fabrication work. The 0.125 inch neck diameter and 0.375 inch neck length provide clearance for plunge and profile cuts in recessed or interrupted features.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous and hard-material cutting
• AlTiN coating improves heat resistance and tool life in steel, stainless steel, and superalloy applications
• 0.04 inch cutting width with 0.02 inch corner radius for controlled keyseat geometry
• Straight-tooth configuration with 6 teeth for consistent chip load per tooth
• 0.125 inch neck diameter provides clearance for recessed or deep-slot keyseat cuts
• 1/4 inch shank diameter fits standard collets and milling chucks without adapters

Compatibility

Designed as an OEM-style Woodruff keyseat cutter for use in vertical milling machines and CNC machining centers equipped with a 1/4 inch collet or chuck. Rated for primary workpiece materials including steel, stainless steel, and cast iron, with secondary capability in non-ferrous metals, superalloys, titanium, and hard materials.

Installation Notes

Installation and use of this cutter is performed by machinists on milling machines or machining centers. Ensure the spindle is fully stopped and the machine is in a safe state before mounting or removing the cutter. Seat the shank fully in the collet or chuck and torque the retention mechanism per the machine manufacturer specification. Verify workpiece fixturing is secure before beginning the keyseat pass to prevent cutter deflection or breakage.