Accupro 310231 Square End Mill 3/8 in 4 Flute Carbide

Product Description

The ACCUPRO 310231 is a solid carbide square end mill designed for high-performance milling in demanding shop environments. It features a 3/8 inch diameter with a 1-1/4 inch length of cut and a 4-flute spiral configuration that promotes efficient chip evacuation and a smooth surface finish. The 38-degree helix angle reduces cutting forces and improves tool life across a range of ferrous and non-ferrous materials. An AlTiCrN coating adds heat and wear resistance, making this end mill well suited for harder workpiece materials and dry or near-dry machining conditions. Machinists and tool-and-die professionals are the primary installers of this tool type.

This end mill is used in vertical and horizontal CNC machining centers as well as manual knee mills where a 3/8 inch shank is accepted. It is a single-end, right-hand cutting tool with right-hand flute direction. The 3 inch overall length and 3/8 inch straight shank make it a standard fit for collet chucks, end mill holders, and shrink-fit tooling systems. It is appropriate for production milling, profiling, slotting, and peripheral cutting operations in job shops and manufacturing facilities.

Key Features

• Solid carbide micrograin substrate provides rigidity and wear resistance
• AlTiCrN coating extends tool life in abrasive and elevated-temperature cutting conditions
• 38-degree helix angle reduces cutting forces and improves surface finish
• 4 spiral flutes with variable index for reduced harmonic vibration during aggressive cuts
• Center-cutting capability allows plunge entry without pre-drilling
• Single-end design with a 3/8 inch shank and 3 inch overall length for broad holder compatibility

Compatibility

Designed as a standard 3/8 inch shank square end mill compatible with collet chucks, end mill holders, and shrink-fit tooling systems that accept a 3/8 inch straight shank.

Installation Notes

Installation is performed by a machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool. Secure the shank in a clean, undamaged holder to the tooling manufacturer's specified clamping method. Inspect the cutting edges for chips or wear before each use, and confirm correct tool offset values are entered in the machine controller before running a new program.