Accupro 12185101 Square End Mill 5/16 in 2 Flute Carbide

Product Description

The ACCUPRO 12185101 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 5/16-inch diameter cutting head with a 1/2-inch length of cut and a matching 5/16-inch shank diameter, giving it a compact stub-length profile at 2-1/2 inches overall length. The two-flute, right-hand spiral design runs a 40-degree helix angle and is centercutting, allowing plunge entry directly into the workpiece. Manufactured from micrograin solid carbide, this uncoated end mill delivers rigidity and edge retention for high-tolerance cuts. It is sold individually and is suitable for a wide range of shop environments.

This end mill is well suited to milling slots, pockets, and contour profiles in ferrous and non-ferrous materials. The stub-length configuration minimizes overhang and reduces deflection during aggressive cuts, making it a reliable choice for machinists working on CNC machining centers or manual knee mills. The double-end design provides two usable cutting ends, extending the service life of the tool. The uncoated finish is appropriate for materials where coating adhesion or heat buildup is not a primary concern, such as aluminum, brass, and certain tool steels.

Key Features

• Solid micrograin carbide construction for edge retention and rigidity
• 40-degree helix angle promotes smooth chip evacuation
• Centercutting geometry allows direct plunge milling
• Double-end design provides two usable cutting ends per tool
• Stub-length profile reduces deflection in short-reach applications
• Right-hand cut and right-hand flute for standard spindle rotation

Compatibility

Designed as a standard shank replacement end mill for CNC machining centers and manual mills accepting a 5/16-inch tool holder or collet.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Seat the shank fully and securely in a properly sized collet or end mill holder to the recommended engagement depth. Verify runout after installation before beginning a cut, as excessive runout accelerates edge wear and reduces dimensional accuracy.