Accupro 314766 Square End Mill 3/8in 3 Flute Carbide Zrn

Product Description

The ACCUPRO 314766 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. Built from micrograin carbide, it delivers a 3/8 inch cutting diameter with a 2 inch length of cut and a 4 inch overall length. The three-flute, right-hand spiral geometry paired with a 37-degree helix angle promotes efficient chip evacuation and smooth cutting action. A zirconium nitride (ZrN) coating improves surface hardness and heat resistance, extending tool life in demanding cuts. This single-end mill is centercutting, allowing plunge entry into workpieces without pre-drilling.

The 314766 is suited for milling ferrous and non-ferrous materials in CNC machining centers and manual knee mills. The 3/8 inch shank diameter matches standard collets and end mill holders found in most production shops. The 2 inch length of cut supports slot milling, profiling, and pocket work at moderate depths. It is typically installed and operated by machinists and CNC programmers working in job shop, toolroom, or production environments.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• ZrN coating increases surface hardness and reduces heat buildup at the cutting edge
• 37-degree helix angle promotes aggressive chip evacuation and reduced cutting forces
• Centercutting design allows direct plunge entry into material
• Right-hand cut and right-hand flute spiral for use on standard CNC and manual spindles
• Mill diameter tolerance of +0.000 / -0.005 inches ensures consistent fit and finish

Compatibility

Designed as a standard 3/8 inch shank end mill compatible with collet chucks, end mill holders, and tool holders accepting a 3/8 inch straight shank across CNC machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Secure the shank fully into a properly sized collet or end mill holder to the recommended minimum engagement depth before tightening. Inspect the cutting edges and coating for chips or damage before mounting. Always confirm spindle speed and feed rate parameters are appropriate for the workpiece material and cutting depth before initiating a cut.