Harvey Tool 67939-C3 Woodruff Keyseat Cutter Solid Carbide

Product Description

The HARVEY TOOL 67939-C3 is a solid carbide Woodruff keyseat cutter designed for milling keyseat slots in shafts and mating components. It features a 0.5-inch cutting diameter with a 0.0788-inch cutting width and mounts on a 1/2-inch shank. The 6-tooth straight configuration provides clean, controlled cuts, while the AlTiN (aluminum titanium nitride) coating increases surface hardness and thermal resistance for extended tool life in demanding materials. At 3 inches overall length, it suits standard milling setups where reach and rigidity are both priorities. Machinists and tool-and-die professionals rely on this geometry for producing accurate Woodruff keyseats in a single pass.

This cutter is suited for horizontal and vertical milling machine applications where Woodruff key slots are required on shafts, spindles, or machined components. The solid carbide construction performs well in ferrous and non-ferrous metals, alloy steels, and hardened materials where high-speed steel tooling falls short. The AlTiN finish supports dry or minimal-lubrication machining at elevated cutting speeds, making it a practical choice in production environments where coolant use is limited or undesirable.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• AlTiN coating provides thermal protection and extended tool life at higher cutting speeds
• 0.5-inch cut diameter and 0.0788-inch cut width for precise Woodruff keyseat geometry
• Straight tooth configuration delivers clean slot walls and predictable chip evacuation
• 6 cutting teeth for balanced stock removal and surface finish
• 3-inch overall length on a 1/2-inch shank for secure clamping in standard collets and end mill holders

Compatibility

Designed as an OEM-style Woodruff keyseat cutter for use in standard milling operations requiring a 1/2-inch shank connection and a 0.5-inch cutting diameter.

Installation Notes

Installation is performed by machinists using a standard collet chuck or end mill holder sized for a 1/2-inch shank — confirm holder runout before cutting to protect both the tool and the workpiece. Power down and lock out the milling machine spindle completely before mounting or removing the cutter. Avoid side-loading or using this cutter outside its rated cutting width, as keyseat cutters are not designed for axial plunge cutting. Follow shop safety protocols and applicable OSHA machine guarding standards during setup and operation.