Accupro 313291 Square End Mill 1/2 in 2 Flute Solid Carbide

Product Description

The ACCUPRO 313291 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous materials. With a 1/2 inch mill diameter and a 45-degree helix angle, this end mill delivers efficient chip evacuation and smooth cutting action across a wide range of machining applications. The two-flute configuration provides clearance for aggressive material removal in softer metals and plastics. Built from micrograin solid carbide, it offers the rigidity and wear resistance required for high-speed CNC milling. The bright/uncoated finish makes it suitable for general-purpose use without added coating costs.

This end mill is suited for use in vertical machining centers, CNC knee mills, and manual milling machines. The 3/4 inch length of cut and 3 inch overall length make it a practical choice for standard-depth slot milling, profiling, and peripheral milling operations. The 1/2 inch shank diameter fits standard ER collet chucks and end mill holders commonly found in production and job shop environments. Right-hand cutting and right-hand flute direction follow conventional milling setups. Center-cutting capability allows plunge entry without pre-drilling.

Key Features

• Micrograin solid carbide construction for rigidity and extended tool life
• 45-degree helix angle promotes efficient chip flow and reduced cutting forces
• Center-cutting design enables direct plunge entry into the workpiece
• Right-hand cut and right-hand spiral flute direction for standard milling setups
• Bright/uncoated finish suitable for general-purpose and non-ferrous applications
• Mill diameter tolerance of +0.000/-0.002 inches ensures precise fit and finish

Compatibility

Designed as a general-purpose replacement or production end mill compatible with standard 1/2 inch end mill holders, ER collet chucks, and milling machine spindles accepting 1/2 inch shank tooling.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully powered down and locked out before installing or changing tooling. Seat the shank fully into the collet or holder and torque the retention hardware per the toolholder manufacturer specifications. Verify runout with a dial indicator before beginning a production cut.