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The HARVEY TOOL 855630-C6 is a solid carbide Woodruff keyseat cutter designed for milling keyseat slots in shafts and workpieces where precise width and depth control are critical. It features a 0.3125-inch cutting diameter, a 0.062-inch cutting width, and a straight-tooth configuration with 8 teeth. The AlTiN coating improves heat resistance and tool life during high-speed or dry cutting operations. With a 5/16-inch shank diameter and an overall length of 2.5 inches, this cutter mounts directly in a standard collet or end mill holder and is used by machinists in job shops, production facilities, and tool rooms.
This cutter is suited for slotting Woodruff keyseats in steel, stainless steel, cast iron, and similar materials where tight tolerances on slot width are required. The straight-tooth geometry provides clean, controlled cuts in both horizontal and vertical milling setups. It is appropriate for CNC machining centers and manual knee mills where the operator needs consistent slot geometry for Woodruff key fitment in shaft and hub assemblies.
Designed as an OEM-style Woodruff keyseat cutter for use in standard 5/16-inch collets and end mill holders on CNC machining centers and manual milling machines.
This cutter should be installed by a qualified machinist following standard toolroom practices. Secure the shank fully in a collet or end mill holder and verify runout before cutting. Power down the spindle completely before changing or inspecting the tool. Do not exceed the recommended depth of cut for the cutter diameter, and ensure adequate coolant or air blast when cutting ferrous materials.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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