Accupro 310125 Square End Mill 1/4 in 4 Flute Carbide

Product Description

The ACCUPRO 310125 is a solid carbide square end mill designed for precision metal removal in milling applications. It features a 1/4 inch cutting diameter with a 1 inch length of cut, a 38-degree helix angle, and a Variable Index geometry that reduces chatter and improves surface finish. The AlTiCrN coating provides heat resistance and extended tool life in ferrous and hardened materials. This is a single-end, center-cutting tool built for right-hand cutting with right-hand spiral flutes. It is used by machinists and tool-and-die professionals on CNC machining centers and manual knee mills.

The 310125 is suited for slotting, profiling, and peripheral milling in steel, stainless steel, and high-temperature alloys where coating performance and edge stability matter. The micrograin carbide substrate supports sharper edges and tighter tolerances compared to standard carbide grades. With a 1/4 inch shank diameter matching the cutting diameter and a 3 inch overall length, this tool fits standard 1/4 inch collets and end mill holders commonly found in both production and job-shop environments.

Key Features

• 1/4 inch cutting diameter with 1 inch length of cut for shallow-to-moderate depth passes
• 4 flute, right-hand spiral configuration for efficient chip evacuation and finish quality
• 38-degree helix angle reduces cutting forces and vibration
• Variable Index flute spacing minimizes harmonic chatter during aggressive cuts
• AlTiCrN coating delivers thermal and oxidation resistance in dry or near-dry machining
• Micrograin solid carbide substrate for superior edge retention and dimensional accuracy
• Center-cutting capable — suitable for plunge entry and ramping operations

Compatibility

Designed for use in standard 1/4 inch collets and end mill holders on CNC machining centers and manual milling machines. Part of the ACCUPRO HS series of high-performance solid carbide end mills.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully in the collet or holder to the recommended gauge length and torque the retention mechanism per the tool holder manufacturer specification. Inspect the cutting edges for chips or coating damage before use and verify runout with a dial indicator before beginning a new operation.