Accupro 12179745 Square End Mill 1/2 in 3 Flute Solid Carbide

Product Description

The ACCUPRO 12179745 is a solid carbide square end mill designed for high-performance milling in ferrous and non-ferrous materials. It features a 1/2 inch cutting diameter, a 2 inch length of cut, and a 40-degree helix angle that promotes smooth chip evacuation and reduces cutting forces. The AlTiN coating improves heat resistance and extends tool life in demanding cutting conditions. With three flutes and a right-hand spiral flute geometry, this end mill balances rigidity with chip clearance. It is used primarily by machinists and toolroom professionals on CNC mills and manual milling machines.

This end mill is suited for long-reach milling operations where standard-length tooling cannot access the full depth of a feature. The 4 inch overall length and 2 inch length of cut place it in the long-length category, making it appropriate for deep pocket milling, slotting, and profile work. The centercutting capability allows plunge entry directly into the workpiece without a pre-drilled hole. Typical applications include job shop machining, die and mold work, and general-purpose CNC production milling in metalworking environments.

Key Features

• Solid carbide micrograin substrate for wear resistance and edge integrity
• AlTiN finish for elevated heat resistance in high-speed and dry cutting
• 40-degree helix angle promotes efficient chip flow and reduced cutting pressure
• Centercutting design allows direct plunge entry without pilot drilling
• Right-hand cut and right-hand flute with spiral flute geometry for standard CNC compatibility
• Long-length configuration with 2 inch length of cut for deep-feature access

Compatibility

Designed as a direct-fit replacement for standard 1/2 inch shank square end mill toolholders including ER collet chucks, shrink-fit holders, and Weldon-style side-lock holders accepting a 1/2 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following standard toolholding procedures. Ensure the spindle is fully stopped and machine power is off or in an e-stop state before loading or changing tooling. Insert the shank to the recommended engagement depth specified by the toolholder manufacturer and verify runout with a dial indicator before beginning a cut. Do not exceed the tool manufacturer's recommended depth of cut or feed rate for the workpiece material.