Accupro 312603 Square End Mill 3/8 in 7 Flute Carbide

Product Description

The ACCUPRO 312603 is a 7-flute solid carbide square end mill designed for high-performance milling in ferrous and hardened materials. The 3/8 inch diameter cutting head features a 38-degree right-hand spiral helix with an AlTiCrN coating, delivering excellent heat resistance and tool life in demanding cutting applications. With a 1-1/2 inch length of cut and a 4 inch overall length, this end mill is suited for medium-depth slotting, profiling, and finishing passes. The micrograin carbide substrate provides rigidity and wear resistance at elevated surface speeds. Installation is performed by qualified machinists and CNC setup technicians.

This end mill is used in CNC machining centers and manual milling machines where high flute count and coating performance are required. It is well suited for finishing operations in stainless steel, tool steel, hardened alloys, and other difficult-to-machine materials. The single-end, right-hand cutting configuration is the standard for most vertical machining center setups. The Series HS designation places it in ACCUPRO high-speed geometry tooling, optimized for modern CNC spindle speeds and feeds. A 3/8 inch straight shank allows direct collet or end mill holder installation.

Key Features

• 7-flute design increases feed rates and improves surface finish in finishing and semi-finishing cuts
• AlTiCrN coating provides high-temperature oxidation resistance and extended tool life in ferrous materials
• 38-degree right-hand helix angle promotes efficient chip evacuation and reduces cutting forces
• Micrograin solid carbide substrate delivers rigidity and resistance to edge wear
• Single-end, non-centercutting configuration optimized for peripheral milling and profiling
• 3/8 inch shank diameter matches standard collet and end mill holder sizes

Compatibility

Designed as an OEM-style replacement end mill for CNC machining center and manual milling applications requiring a 3/8 inch diameter, 7-flute solid carbide square end mill with a 3/8 inch straight shank.

Installation Notes

Installation is performed by qualified machinists or CNC setup personnel. Power down and lock out the spindle before inserting or removing the end mill from the holder. Ensure the collet or end mill holder is clean and free of chips before seating the shank. Do not use this end mill for plunge cutting, as this is a non-centercutting tool.