Accupro 12180728 Square End Mill 3/8 in 5 Flute Carbide

Product Description

The ACCUPRO 12180728 is a solid carbide square end mill designed for precision milling in ferrous and non-ferrous materials. It features a 3/8-inch cutting diameter, 5-flute geometry, and a 40-degree helix angle, which promotes efficient chip evacuation and smooth surface finishes at higher feed rates. The AlTiN coating adds heat resistance, making it well-suited for dry or semi-dry cutting conditions. With a micrograin carbide substrate, this end mill maintains edge integrity under demanding cutting loads. It is centercutting, allowing it to plunge directly into material. Licensed machinists and CNC operators are the primary users of this tool.

This end mill is suited for milling operations in job shops, tool rooms, and production machining environments. It handles profiling, slotting, and pocketing operations in alloy steels, stainless steels, hardened materials, and similar workpieces where coating performance matters. The 7/8-inch length of cut and 2-1/2-inch overall length make it appropriate for moderate-depth cavities and standard reach applications. The variable index flute spacing reduces harmonic vibration during cutting, improving finish quality in chatter-prone setups.

Key Features

• Solid micrograin carbide construction for edge retention in hard and abrasive materials
• AlTiN finish for elevated heat resistance in dry and high-speed cutting
• 5-flute design with 40-degree helix for efficient chip flow and high material removal rates
• Variable index flute spacing to reduce cutting vibration and improve surface finish
• Centercutting geometry enables direct plunge entry without a pre-drilled hole
• Right-hand cut and right-hand spiral flute for use on standard CNC and manual milling machines

Compatibility

Designed as an OEM-style replacement or direct-purchase solid carbide square end mill for standard 3/8-inch collet or end mill holders used in CNC machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the 3/8-inch shank fully in a matched collet or end mill holder and torque the retention mechanism to the tool holder manufacturer specification. Verify runout with a dial indicator before beginning a production cut, as excessive runout will reduce tool life and surface finish quality.