Accupro 313183 Square End Mill 3/8 in 2 Flute Solid Carbide Zrn

Product Description

The ACCUPRO 313183 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It has a 3/8 inch cutting diameter, a 3/4 inch length of cut, and a 2-1/2 inch overall length. The 45-degree spiral helix and ZrN (zirconium nitride) coating reduce friction and extend tool life in demanding cutting environments. With two flutes and a centercutting geometry, this end mill supports both peripheral and plunge cutting. It is sized for use in standard 3/8 inch collets and tool holders. Machinists and CNC operators in job shops, production facilities, and tool rooms are the primary users.

This end mill is suited for milling slots, pockets, profiles, and contours in ferrous and non-ferrous materials. The micrograin carbide substrate provides edge strength and wear resistance for both roughing and finishing passes. The right-hand cut and right-hand flute direction make it compatible with conventional spindle setups. It is a single-end tool, meaning it is replaced rather than re-indexed when worn. Applications include general-purpose milling in steel, aluminum, cast iron, and similar materials where a two-flute design supports chip evacuation.

Key Features

• 3/8 inch cutting diameter with mill diameter tolerance of +0.000 / -0.002 inches
• ZrN coating reduces heat buildup and extends cutting life
• 45-degree helix angle promotes smooth chip evacuation and reduced cutting forces
• Centercutting geometry allows direct plunge entry into workpiece
• Micrograin solid carbide substrate for superior edge retention
• Right-hand cut and right-hand spiral flute for standard spindle compatibility

Compatibility

Designed for use in standard 3/8 inch collet chucks and tool holders on CNC machining centers and manual milling machines with right-hand spindle rotation.

Installation Notes

Installation is performed by a machinist or CNC operator. Power down and lock out the machine spindle before loading or removing the end mill. Secure the shank fully within the collet or tool holder to the manufacturer-specified engagement depth and verify runout before beginning the cut. Inspect the cutting edges for chipping or wear before each use and replace the tool rather than re-sharpening a worn single-end end mill.