Keo 943-000-309 Woodruff Keyseat Cutter Staggered Tooth Hss

Product Description

The KEO 943-000-309 is a Woodruff keyseat cutter designed for milling keyseat slots in shafts and hubs. It features a staggered tooth configuration across 14 teeth, a 1.5150-inch cut diameter, and a 0.25-inch cutting width. The 1/2-inch shank connects directly to standard milling machine or machining center arbors. Manufactured from high speed steel (HSS) with a bright/uncoated finish, this cutter conforms to ANSI standard 812 (Old Standard No. 24). It is intended for use by machinists and toolroom professionals working on precision shaft keyway applications.

This cutter is suited for keyseat milling operations on a range of workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The staggered tooth geometry reduces cutting forces and helps manage chip evacuation on tougher materials. With an overall length of 2.25 inches and a neck length of 0.375 inches, it fits standard Woodruff keyseat setups in both manual and CNC milling environments. Typical applications include shaft keyway production in industrial, toolroom, and maintenance machining settings.

Key Features

• Staggered tooth design with 14 teeth for reduced cutting forces and improved chip flow
• High speed steel (HSS) construction with bright/uncoated finish for general-purpose keyseat milling
• Conforms to ANSI 812 standard, Old Standard No. 24
• Compatible with steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium workpieces
• No Weldon flat on shank; not oversized for resharpening
• 1/2-inch shank diameter fits standard milling arbors and collet chucks

Compatibility

Designed as an ANSI 812 Woodruff keyseat cutter for use in standard milling machines and machining centers with 1/2-inch shank toolholders. Suitable for steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium workpiece materials.

Installation Notes

Installation should be performed by a qualified machinist following standard milling machine setup procedures. Ensure the machine spindle is fully stopped and locked out before mounting or removing the cutter. Secure the shank firmly in a collet, end mill holder, or arbor rated for the 1/2-inch shank diameter. Verify cutting depth and lateral positioning against the keyseat specification before engaging the workpiece.