Accupro 12178877 Square End Mill 3/16 in 3 Flute Carbide

Product Description

The ACCUPRO 12178877 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous materials. With a 3/16 inch cutting diameter and a 5/8 inch length of cut, this tool delivers tight tolerances in slotting, profiling, and finishing passes. The nACRo coating provides elevated heat resistance and lubricity for extended tool life at higher cutting speeds. Micrograin carbide substrate adds toughness and edge retention. The 40-degree helix angle promotes efficient chip evacuation and reduces cutting forces, making it well-suited for demanding applications in tool steel, stainless, and hardened materials. Licensed machinists and CNC operators are the primary users of this end mill.

This end mill fits residential and industrial CNC machining centers, manual knee mills, and toolroom applications where a compact 3/16 inch diameter is required. The centercutting geometry allows both plunge and ramp entry, expanding its use in die, mold, and precision fixture work. The right-hand cut and right-hand spiral flute configuration is standard for conventional and climb milling on most vertical machining centers. Its regular length profile suits general-purpose pocketing and contouring at moderate depths.

Key Features

• nACRo coating for improved heat resistance and extended tool life in hard and abrasive materials
• Micrograin solid carbide substrate for superior edge retention and rigidity
• 40-degree helix angle promotes aggressive chip evacuation and smooth cutting action
• Centercutting design allows direct plunge entry without pre-drilling
• Right-hand cut with right-hand spiral flute for standard milling center compatibility
• Mill diameter tolerance of plus 0.000 and minus 0.002 inches for close-tolerance work

Compatibility

Designed as an OEM-style replacement or direct-use tooling for CNC vertical machining centers and manual mills accepting a 3/16 inch straight shank end mill with standard ER or collet chuck toolholders.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Always ensure the spindle is fully stopped and the machine is powered down or in a safe state before changing tooling. Use a calibrated torque wrench and appropriate collet or end mill holder rated for the shank diameter to secure the tool. Verify runout with a dial indicator after installation before beginning a cut.