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The VALUE COLLECTION 78-1392 is a solid carbide Woodruff keyseat cutter designed for milling semicircular keyseats in shafts and related workpieces. It features a 1.125-inch cutter diameter and a straight tooth configuration, producing consistent keyseat geometry in a single pass. The micrograin carbide construction delivers hardness and edge retention across demanding materials. A 0.5-inch shank provides rigid tool holding in standard milling chucks and collets. Machinists and tool-and-die professionals use this cutter on vertical mills and CNC machining centers where precise keyseat dimensions are critical to shaft-to-hub fit and torque transmission.
This cutter is suited for use on steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The 1/16-inch (0.0625-inch) cutting width produces narrow keyseats typical in smaller shaft assemblies. With an overall length of 2.75 inches and a neck diameter of 0.28 inches, the tool reaches keyseat locations that require clearance past adjacent features. The bright uncoated finish is appropriate across this range of workpiece materials without the need for specialized coatings.
Designed as a shank-mount keyseat cutter for use in vertical milling machines and CNC machining centers where a 0.5-inch collet or tool holder is employed. Suitable for workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium.
Installation is performed by qualified machinists. Secure the 0.5-inch shank in a matched collet or end-mill holder and verify tool runout before cutting. Power down the spindle completely before tool changes. Follow shop safety protocols and machine manufacturer guidelines for speeds and feeds appropriate to the workpiece material and cutter diameter.
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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