Value Collection C2100303 Woodruff Keyseat Cutter Cobalt M42

Product Description

The VALUE COLLECTION C2100303 is a Woodruff keyseat cutter designed for milling keyseat slots in shafts and other machined components. Built from M42 cobalt high-speed steel with a bright, uncoated finish, this cutter delivers durability and heat resistance in demanding cutting operations. It features a 0.375-inch cut diameter and a 0.0938-inch cutting width, with 6 straight teeth for clean, consistent slot profiles. The 1/2-inch shank mounts directly to standard milling machine arbors and tool holders. This cutter conforms to ANSI Standard Number 303 and Old Standard Number 212, making it a recognized fit for a wide range of production and maintenance machining tasks. Machinists, toolmakers, and maintenance professionals are the primary users.

This Woodruff keyseat cutter is suited for use in manual mills, knee mills, and CNC milling machines wherever a Woodruff-style keyseat is required. Typical applications include shaft-to-hub keyway preparation in gearboxes, motors, pulleys, and similar rotating assemblies. The straight tooth configuration is appropriate for conventional milling in steel, aluminum, and similar materials. The cobalt M42 grade extends tool life compared to standard HSS when cutting harder workpiece materials or when operating at elevated spindle speeds.

Key Features

• M42 cobalt high-speed steel construction for improved heat and wear resistance
• Straight tooth configuration for consistent Woodruff keyseat slot profiles
• 0.375-inch cut diameter and 0.0938-inch cutting width to ANSI Standard 303
• 1/2-inch shank diameter for compatibility with standard milling arbors and holders
• Bright, uncoated finish suitable for use with cutting fluids across a range of workpiece materials
• 6 teeth for balanced material removal and finish quality

Compatibility

Conforms to ANSI Standard Number 303 and Old Standard Number 212. Designed as an OEM-style replacement or direct-fit cutter for any milling setup requiring a Woodruff keyseat cutter of this diameter and width specification.

Installation Notes

Installation is performed by qualified machinists or toolmakers on a properly secured and powered-down milling machine. Ensure the arbor and spindle are clean and free of debris before mounting the cutter. Verify cutter runout with a dial indicator after mounting before beginning the cut. Use appropriate cutting fluid for the workpiece material and observe all machine guarding requirements during operation.