Accupro 12181252 Square End Mill 0.1181 in 2 Flute Carbide

Product Description

The ACCUPRO 12181252 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous metals, hardened steels, and engineered plastics. With a 0.1181 inch (3.00 mm) mill diameter and a 0.4724 inch (12.00 mm) length of cut, this end mill handles slotting, profiling, and contouring in tight-tolerance applications. The 2-flute geometry paired with a 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. A TiCN (titanium carbonitride) coating adds surface hardness and lubricity, extending tool life in abrasive cutting conditions. Machinist-grade micrograin carbide substrate ensures edge integrity at elevated cutting speeds.

This end mill fits standard CNC machining centers, manual mills, and high-speed spindle applications requiring a 3.00 mm shank diameter. The right-hand cut, right-hand spiral flute configuration is the industry-standard orientation for conventional and climb milling on vertical and horizontal setups. The centercutting design allows plunge entry, making it suitable for ramping and pocket milling operations. Regular-length construction keeps it versatile for general shop use without sacrificing rigidity at small diameters.

Key Features

• Solid micrograin carbide substrate for high edge strength and wear resistance at small diameters
• TiCN coating increases surface hardness and reduces built-up edge in abrasive materials
• 40-degree helix angle promotes smooth chip flow and reduces cutting forces
• Centercutting geometry allows direct plunge and ramp entry into workpiece
• 2-flute design maximizes chip clearance in slotting and deep-pocket operations
• Right-hand cut and right-hand flute direction for standard CNC and manual mill compatibility

Compatibility

Designed as a general-purpose square end mill for CNC machining centers and manual vertical mills accepting a 3.00 mm shank diameter collet or toolholder.

Installation Notes

Installation and tool changes must be performed with the spindle fully stopped and machine power locked out per shop safety protocols. Seat the shank fully into a matched collet or end mill holder and torque the retention mechanism to the toolholder manufacturer specification. Verify runout with a dial indicator before beginning cuts, as excessive runout at this diameter accelerates edge wear and can cause tool breakage. At 0.1181 inch diameter, select conservative feed and speed parameters and avoid excessive side load or interrupted cuts without proper support.