Value Collection C21001012 Woodruff Keyseat Cutter Cobalt M42

Product Description

The VALUE COLLECTION C21001012 is a Woodruff keyseat cutter designed for milling semicircular keyseats into shafts and mating components. Built from cobalt M42 high-speed steel, this cutter delivers strong heat and wear resistance during interrupted cuts in steel, stainless, and other hard materials. It features a 1.5-inch cut diameter, a 0.3125-inch cutting width, and a 1/2-inch shank diameter for use in standard milling machine collets and arbors. The straight-tooth configuration provides clean, consistent cuts with predictable chip evacuation. With 16 teeth and a bright uncoated finish, it suits production and maintenance machining operations requiring accurate, repeatable keyseat dimensions.

This keyseat cutter is used in machine shops, maintenance facilities, and manufacturing environments where shaft-and-key assemblies require precisely sized Woodruff keyseats. It conforms to ANSI American Standard Number 1012, also referenced as Old Standard Number 25, making it a direct fit for applications specified to those standards. Typical install scenarios include drive shaft work, gearbox rebuilds, pulley assemblies, and precision component fabrication where keyseat geometry must match a standardized Woodruff key size.

Key Features

• Cobalt M42 construction for improved heat resistance and extended tool life in hard or abrasive materials
• 1.5-inch cut diameter and 0.3125-inch cutting width conform to ANSI Standard Number 1012 and Old Standard Number 25
• Straight-tooth design provides consistent chip evacuation and smooth keyseat surfaces
• 16-tooth count balances feed rate flexibility with surface finish quality
• Bright uncoated finish suitable for general-purpose machining applications
• 1/2-inch shank diameter fits standard milling machine collets and arbor holders

Compatibility

Designed as an OEM-style replacement or new-installation Woodruff keyseat cutter conforming to ANSI American Standard Number 1012 and Old Standard Number 25. Fits milling machines accepting a 1/2-inch shank diameter toolholder or collet.

Installation Notes

Installation and use should be performed by a qualified machinist familiar with milling machine operation and toolholder setup. Ensure the machine spindle is fully stopped and the power is locked out before mounting or removing the cutter. Secure the shank firmly in the collet or arbor to the machine manufacturer specifications to prevent runout or pullout during cutting. Follow applicable shop safety standards and machine guarding requirements throughout operation.