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The HARVEY TOOL 51912 is a single-flute, solid carbide square end mill designed for precision milling operations in a wide range of materials. With a 3/16-inch cutter diameter and a 1-inch length of cut, this end mill delivers clean, square-shoulder profiles in slots, pockets, and contour passes. The 22-degree helix angle supports efficient chip evacuation, which is especially important when running a single-flute geometry. The bright, uncoated finish makes it well suited for applications where coating buildup or heat interaction with the workpiece is a concern. Machinists and toolroom operators reach for this geometry when detail work and tight tolerances demand a small-diameter, rigid carbide tool.
This end mill is used in CNC milling centers and manual mills across job shops, toolrooms, and production environments. It is a good fit for slotting and profiling in aluminum, plastics, wood composites, and other non-ferrous materials where a single-flute design promotes fast chip clearing and prevents recutting. The 3/16-inch shank diameter matches the cutter diameter, allowing direct chuck or collet mounting in standard ER, TG, or end mill holders. The 3-inch overall length provides adequate reach for most standard fixturing setups without sacrificing rigidity at this diameter.
Designed as an OEM-style replacement and standard tooling option for CNC milling machines and manual mills accepting 3/16-inch collet or end mill holder interfaces.
Installation should be performed by a qualified machinist or toolroom technician. Ensure the spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the holder to the recommended engagement depth before torquing the collet nut or set screw. Inspect the cutting edges under magnification before use and do not run a chipped or damaged end mill.
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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