Accupro 12181808 Square End Mill 3/16 in 2 Flute Carbide Altin

Product Description

The ACCUPRO 12181808 is a solid carbide square end mill designed for precision milling in ferrous and non-ferrous metals, hardened steels, and high-temperature alloys. The 3/16 inch cutting diameter pairs with a 1 inch length of cut and a 4 inch overall length, placing this tool in the long-reach category for accessing deep pockets and stepped features. The AlTiN coating improves heat resistance and extends tool life in dry or semi-dry cutting environments. With a 40-degree helix angle and spiral flute geometry, it provides efficient chip evacuation and smooth cutting action. Machinist and CNC operators in job shops, tool rooms, and production environments will find it well suited for tight-tolerance finishing and slotting operations.

This end mill is built for use in CNC machining centers and manual mills where a 3/16 inch shank diameter is required. The centercutting capability allows plunge entry directly into the workpiece without a pre-drilled starting hole, expanding its usefulness in contouring, profiling, and pocket milling. The right-hand cut and right-hand flute configuration is the standard orientation for conventional CNC and manual milling setups. The micrograin carbide substrate provides consistent edge integrity across extended production runs.

Key Features

• Solid micrograin carbide construction for edge retention and rigidity
• AlTiN coating for elevated heat and wear resistance in ferrous cutting
• 40-degree helix angle promotes aggressive chip evacuation
• Centercutting design allows direct plunge milling without a pilot hole
• Long-length configuration with 1 inch LOC and 4 inch OAL for deep-reach applications
• Right-hand cut and right-hand flute for standard CNC and manual mill spindles

Compatibility

Designed as a standard shank end mill compatible with 3/16 inch collets, ER collet chucks, and end mill holders used in CNC machining centers and manual vertical mills.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in an e-stop or powered-down state before loading or unloading the tool. Seat the shank fully into the collet or tool holder to the recommended engagement depth to prevent tool pullout under cutting loads. Verify runout with a dial indicator after tool change when working to tight tolerances, as excessive runout will accelerate edge wear on a tool of this diameter.