Accupro 12185199 Square End Mill 3/16 in 4 Flute Carbide

Product Description

The ACCUPRO 12185199 is a double-end square end mill designed for precision milling operations in metal and composite materials. Built from micrograin solid carbide with an AlTiN (aluminum titanium nitride) finish, this tool delivers excellent wear resistance and thermal stability at elevated cutting speeds. The 4-flute, spiral-flute geometry with a 40-degree helix angle promotes efficient chip evacuation and smooth surface finishes. At 0.1875 inches in diameter with a 0.375-inch length of cut and a 2-inch overall length, this is a stub-length tool suited for rigid, close-tolerance work in machining centers and CNC mills.

This end mill is intended for use in professional machining environments where tight tolerances and consistent tool geometry are required. It is well suited for side milling, slotting, and profiling operations on ferrous metals, hardened steels, stainless, and similar materials. The centercutting design allows plunge entry, adding versatility in tight-pocket applications. The right-hand cut, right-hand flute configuration is standard for conventional and climb milling on vertical and horizontal machining centers.

Key Features

• Micrograin solid carbide construction for rigidity and long tool life
• AlTiN coating for high-heat resistance and reduced friction during cutting
• 40-degree helix angle with spiral flutes for efficient chip removal
• Centercutting geometry allows direct plunge entry
• Double-end design provides two usable cutting ends per tool
• Stub-length (LOC range 0.300 to 0.500 inches) for maximum rigidity in close-quarters setups

Compatibility

Designed as an OEM-style replacement or standard tooling option for CNC machining centers and manual mills using 3/16-inch collets or end mill holders with right-hand rotation.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power locked out per shop safety protocols. Ensure the collet or tool holder is clean and free of debris before seating the shank. Verify runout with a dial indicator after installation to confirm proper seating. Follow machine manufacturer guidelines for speed and feed parameters appropriate to the workpiece material.