Accupro 12182252 Square End Mill 7/16 in 3 Flute Carbide

Product Description

The ACCUPRO 12182252 is a solid carbide square end mill designed for precision milling in demanding machining environments. With a 7/16 inch (0.4375 inch) cutting diameter and a 3-inch length of cut, this tool handles deep-reach profiling, slotting, and peripheral milling in a single setup. The micrograin carbide substrate paired with an AlTiN finish provides heat resistance and edge retention at elevated cutting speeds. The 40-degree helix angle promotes efficient chip evacuation and reduces cutting forces. At 6 inches overall length, this is an extra-long configuration suited for setups requiring extended reach without sacrificing rigidity. It is installed by machinists and CNC operators working in job shops, tool rooms, and production machining environments.

This end mill is well-suited for milling steel, stainless steel, cast iron, and other ferrous materials where the AlTiN coating delivers thermal protection. The extra-long 6-inch OAL makes it appropriate for deep cavity work, tall workpiece features, and applications where standard-length tools cannot reach. It fits standard collet chucks, end mill holders, and shrink-fit toolholders with a 7/16 inch bore. The 3-flute geometry balances chip volume and rigidity, making it a practical choice for both roughing and finishing passes on difficult materials.

Key Features

• AlTiN finish for high-temperature resistance and extended tool life in ferrous materials
• 40-degree helix angle promotes smooth cutting action and efficient chip evacuation
• Micrograin carbide substrate for improved hardness and edge retention
• Centercutting design allows direct plunge entry into the workpiece
• Extra-long 6-inch OAL provides reach for deep cavity and tall-feature milling
• Right-hand cut, right-hand spiral flute configuration for standard CNC spindle use

Compatibility

Designed as a direct-fit replacement or standard tooling selection for any setup requiring a 7/16 inch shank end mill in a collet chuck, end mill holder, or shrink-fit toolholder with 7/16 inch bore capacity.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in an energy-isolated state before loading or changing tooling. Verify the holder bore matches the 7/16 inch shank diameter and apply appropriate tightening torque per the toolholder manufacturer's specification. Confirm runout with a dial indicator after seating to minimize premature tool wear and maintain dimensional accuracy.