Accupro 12181604 Square End Mill 11/64 in 2 Flute Carbide

Product Description

The ACCUPRO 12181604 is a solid carbide square end mill designed for precision milling in metal cutting applications. It features a 11/64 inch (0.1719 inch) cutting diameter with a 2-flute spiral flute configuration and a 40-degree helix angle. The AlTiN coating provides heat and wear resistance, making it well-suited for dry or high-speed cutting in ferrous and hardened materials. At 2 inches overall length with a 3/8 inch length of cut, this is a stub-length tool that prioritizes rigidity over reach. Licensed machinists and CNC operators are the typical end users for this style of end mill.

This end mill is appropriate for slot milling, profile milling, and plunge cutting in tight-tolerance applications. The centercutting geometry allows direct plunge entry without a pre-drilled hole. Right-hand cut and right-hand flute orientation are standard for conventional CNC machining centers. The micrograin carbide substrate supports tighter tolerances and longer tool life compared to standard-grade carbide, particularly in harder workpiece materials.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• AlTiN coating for elevated heat resistance and extended tool life in ferrous materials
• 40-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Centercutting design allows direct plunge milling without pilot drilling
• Stub length (3/8 inch LOC) maximizes stiffness and minimizes deflection in shallow cuts
• Right-hand cut and right-hand spiral flute for use on standard CNC machining centers

Compatibility

Designed as a standard shank end mill for use in CNC machining centers and manual mills equipped with a 3/16 inch collet or matching tool holder. Mill diameter tolerance is +0.000/-0.002 inches; shank diameter tolerance is -0.0001/-0.0004 inches.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Seat the 3/16 inch shank fully into a clean, properly sized collet or end mill holder and torque the retention hardware per the tool holder manufacturer specifications. Inspect the tool edge condition before each use and replace at the first sign of chipping or excessive wear.