Accupro 12182057 Square End Mill 15/32 in 3 Flute Carbide

Product Description

The ACCUPRO 12182057 is a solid carbide square end mill designed for precision milling operations in metal cutting and machining applications. It features a 15/32 inch (0.4688 inch) mill diameter with a 1 inch length of cut and a 3 inch overall length. The three-flute, spiral design with a 40-degree helix angle promotes efficient chip evacuation and smooth cutting performance. An AlTiN (Aluminum Titanium Nitride) coating provides heat resistance and extended tool life in ferrous and hardened materials. The micrograin carbide substrate supports demanding cutting conditions where rigidity and edge retention are critical. This end mill is installed and used by CNC machinists and toolroom technicians in production and job-shop environments.

This end mill is suited for slotting, profiling, and peripheral milling in ferrous metals, stainless steel, and hardened alloys. Its centercutting geometry allows direct plunge entry into the workpiece, adding versatility for pocket milling and ramping operations. The 1/2 inch shank diameter fits standard ER, end mill holders, and collet chucks found on vertical machining centers and manual mills. The regular length designation makes it appropriate for general-purpose machining where minimal overhang is preferred for rigidity.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention in demanding cuts
• AlTiN finish provides high heat resistance and extends tool life in ferrous and hardened materials
• 40-degree helix angle promotes efficient chip evacuation and reduces cutting forces
• Centercutting geometry enables direct plunge milling and ramping operations
• Right-hand cut and right-hand flute configuration for standard spindle use
• Mill diameter tolerance of +0.000 / -0.002 inches for close-tolerance work

Compatibility

Designed as an OEM-style replacement and standard tooling option for 1/2 inch end mill holders, ER collet chucks, and compatible toolholding systems used on vertical machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom technician. Power down and lock out the spindle before changing tooling. Seat the shank fully into the holder to the recommended gauge length and torque the set screw or collet nut per the toolholder manufacturer specifications. Inspect the cutting edges for chips or damage before each use, and verify runout with a dial indicator after installation to ensure concentricity.