Value Collection C2100403 Woodruff Keyseat Cutter Cobalt

Product Description

The VALUE COLLECTION C2100403 is a Woodruff keyseat cutter designed for milling the curved keyway seats used in shaft-and-hub assemblies. Built from M42 cobalt high-speed steel, it delivers hardness and heat resistance suitable for cutting steel, stainless, and other tough materials. The cutter measures 0.375 inches in cut diameter with a 0.125 inch cut width, rides on a 0.5 inch straight shank, and carries 6 straight teeth in a bright, uncoated finish. Overall length is 2.125 inches. It conforms to ANSI standard number 403 and old standard number 213. Machinists and tool-and-die technicians reach for this cutter when precise Woodruff keyway geometry is required on manual mills or CNC machining centers.

This cutter is used in metalworking shops, maintenance facilities, and production environments wherever Woodruff keyseats must be cut into shafts, spindles, or bores. The straight-tooth configuration suits conventional milling operations and provides clean, repeatable cuts in the keyway profile. At 0.375 inches in cut diameter and 0.125 inches in width, it matches standard Woodruff key sizing used across a broad range of mechanical power-transmission applications including motors, pumps, and gear assemblies common to HVAC, plumbing, and industrial equipment service work.

Key Features

• M42 cobalt HSS construction for elevated heat and wear resistance compared to standard M2 HSS
• Straight-tooth configuration for consistent cutting action in Woodruff keyseat applications
• 0.375 inch cut diameter and 0.125 inch cut width conform to ANSI standard 403 geometry
• Bright, uncoated finish suitable for general-purpose metalcutting without additional surface treatment
• 0.5 inch straight shank for direct mounting in standard milling machine collets or arbors
• 6-tooth cutter design balances chip clearance and surface finish in keyway milling operations

Compatibility

Designed as an OEM-style keyseat cutter conforming to ANSI standard number 403 and old standard number 213, suitable for use with standard 0.5 inch shank milling machine setups.

Installation Notes

Installation and use of this cutter should be performed by a qualified machinist familiar with milling machine operation and safe tooling practices. Secure the shank firmly in a properly sized collet or arbor before initiating any cut, and verify spindle speed is set per the recommended surface footage for cobalt HSS tooling on the workpiece material. Always power down and lock out the machine before changing or inspecting tooling. Eye protection and appropriate chip guarding are required during all milling operations.