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The HARVEY TOOL 988910-C8 is a Woodruff keyseat cutter designed for milling keyseats and slots in shafts and mating components. It features a 0.5 inch cutting diameter and an exceptionally narrow 0.031 inch cutting width, making it well suited for precise, close-tolerance keyseat work. The cutter is manufactured from solid carbide and carries a Titanium Diboride (TiB2) coating, which reduces friction and extends tool life in demanding cutting applications. With 6 straight teeth and a 3 inch overall length, it mounts on a standard 1/2 inch shank for use in vertical mills, CNC machining centers, and manual milling machines. It is sold individually.
This cutter is used in metalworking applications where a Woodruff keyseat must be cut to precise width and depth tolerances. The 0.031 inch cutting width corresponds to a 1/32 inch nominal slot, appropriate for small Woodruff keys used in shaft-and-hub assemblies. Typical applications include shaft preparation in industrial, automotive, and precision mechanical component manufacturing. A licensed machinist or toolroom technician performs this operation, typically on ferrous and non-ferrous metals where close fits are required.
Designed as an OEM-style replacement-style Woodruff keyseat cutter compatible with standard 1/2 inch collets, end mill holders, and milling chucks used on vertical mills and CNC machining centers.
Installation is performed by a qualified machinist or toolroom technician. Secure the 1/2 inch shank in a properly sized collet or end mill holder and verify runout before cutting. Power down and lock out the machine spindle before changing or inspecting the cutter. Follow shop-standard feeds and speeds for carbide tooling appropriate to the workpiece material.
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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