Accupro 12182281 Square End Mill 5/16 in 3 Flute Solid Carbide

Product Description

The ACCUPRO 12182281 is a solid carbide square end mill designed for precision material removal in milling operations. Built from micrograin carbide with a TiCN coating, this tool delivers wear resistance and edge retention in demanding cutting environments. It features a 5/16 inch cutting diameter, a 1 inch length of cut, and a 40-degree helix spiral flute geometry. The centercutting design allows plunge entry, giving machinists flexibility in toolpath strategies. Three right-hand flutes with right-hand cut direction provide efficient chip evacuation in a compact profile suited for slots, pockets, and profiling.

This end mill is a long-series tool with a 4 inch overall length and a 5/16 inch straight shank, fitting standard collets and end mill holders of the same bore. It is appropriate for use on CNC machining centers, knee mills, and manual machines across job shops, production floors, and tool rooms. Typical applications include slotting, side milling, and contouring in ferrous and non-ferrous materials where a TiCN-coated micrograin carbide grade is appropriate.

Key Features

• Solid micrograin carbide substrate for high rigidity and wear resistance
• TiCN finish for improved surface hardness and coating adhesion
• 40-degree helix spiral flute for smooth cutting action and chip flow
• Centercutting geometry enables direct plunge cuts
• Right-hand cut and right-hand flute direction, standard configuration
• Long series OAL of 4 inches extends reach into deeper features

Compatibility

Designed as a direct-fit replacement or standard tooling selection for any spindle or tool holder accepting a 5/16 inch shank diameter end mill in collet chucks, ER collets, or set-screw style end mill holders.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the shank. Verify runout with a dial indicator after clamping to confirm proper tool engagement. Follow the tool manufacturer and machine builder guidelines for feeds, speeds, and depth-of-cut for the specific workpiece material.