Accupro 315205 Square End Mill 1 in 3 Flute Carbide Zrn

Product Description

The ACCUPRO 315205 is a solid carbide square end mill designed for precision milling operations in metalworking and machining environments. It features a 1-inch mill diameter with a 2-inch length of cut, a 1-inch shank diameter, and a 5-inch overall length. The three-flute, right-hand spiral geometry runs at a 37-degree helix angle, promoting efficient chip evacuation and smooth surface finishes. A ZrN (zirconium nitride) coating adds hardness and heat resistance, extending tool life in demanding cutting applications. The micrograin carbide substrate supports higher cutting speeds than standard carbide grades. This tool is installed and operated by machinists and CNC programmers in production and job-shop environments.

This end mill is suited for peripheral and slot milling in ferrous and non-ferrous materials where a regular-length, single-end tool is appropriate. The center-cutting geometry allows plunge entry, giving operators flexibility in pocket milling and profiling operations. With no chipbreaker and a fixed helix design, it is best applied where consistent, predictable chip loads are required. It is a single-end tool, meaning once the cutting end is worn it is not reversible.

Key Features

• 1-inch mill diameter with plus 0.000 / minus 0.002 inch diameter tolerance
• 2-inch length of cut suitable for moderate-depth slotting and profiling
• 37-degree right-hand helix angle for efficient chip flow
• ZrN coating for increased surface hardness and thermal resistance
• Micrograin solid carbide substrate for rigidity and wear resistance
• Center-cutting design allows direct plunge entry

Compatibility

Designed as an OEM-style replacement or direct-fit tool for standard 1-inch straight-shank tool holders used in CNC machining centers and manual milling machines.

Installation Notes

Installation requires a compatible 1-inch straight shank tool holder or collet system; verify runout and holder condition before clamping. Machinists should follow shop-specific speeds and feeds for the workpiece material and machine spindle. Ensure the spindle is fully stopped and the machine is in a safe state before changing or inspecting the end mill. Discard or regrind when cutting edges show visible wear to avoid workpiece damage or tool breakage.