Accupro 315209 Square End Mill 1in 3 Flute Solid Carbide Zrn

Product Description

The ACCUPRO 315209 is a solid carbide square end mill designed for precision milling operations in metal cutting and machining environments. With a 1-inch cutting diameter and a 3-inch length of cut, this tool handles deep slotting, profiling, and peripheral milling in a single setup. The 3-flute geometry balances chip evacuation with surface finish quality, making it well suited for both roughing and semi-finishing passes. A 37-degree helix angle promotes aggressive shearing action and reduces cutting forces. ZrN (zirconium nitride) coating improves lubricity and wear resistance, extending tool life in ferrous and non-ferrous materials. The micrograin carbide substrate provides the toughness and edge retention required for demanding production environments.

This end mill is classified as a long-length tool with a 6-inch overall length and a 1-inch shank diameter, giving machinists extended reach into deep cavities, molds, and dies without requiring extension holders. Right-hand cutting and right-hand flute direction conform to standard CNC machining center and manual milling machine setups. The centercutting capability allows direct plunge entry into workpieces where required. It is intended for use by machinists and tool-and-die makers operating vertical machining centers, CNC mills, or manual knee mills.

Key Features

• 1-inch cutting diameter with plus 0.000 / minus 0.002 inch mill diameter tolerance
• 3-inch length of cut for deep cavity and slot milling applications
• 3-flute spiral geometry supports chip clearance and balanced cutting forces
• 37-degree helix angle for aggressive shearing and reduced radial cutting pressure
• ZrN coating enhances wear resistance and tool life on a range of workpiece materials
• Micrograin solid carbide construction delivers edge retention under high cutting loads
• Centercutting design permits direct plunge milling without a pre-drilled pilot hole

Compatibility

Designed as an OEM-style replacement or direct-use end mill for standard 1-inch straight-shank tool holders, collet chucks, and hydraulic chucks used in vertical machining centers and CNC milling machines.

Installation Notes

Installation should be performed by a qualified machinist following shop-standard tool-holding procedures. Ensure the machine spindle is fully powered down and locked out before changing or setting tools. Confirm the shank is fully seated in the holder to the minimum engagement depth recommended by the holder manufacturer. Inspect the cutting edges and coating condition before each use and replace the tool if chipping or excessive wear is observed.