Accupro 313317 Corner Radius End Mill 1/2 in Zrn Carbide

Product Description

The ACCUPRO 313317 is a solid carbide corner radius end mill designed for precision milling operations where a controlled radius edge is required. It features a 1/2 inch diameter, a 1-1/4 inch length of cut, and a 3 inch overall length. The cutting geometry uses a 45-degree helix angle with a 0.060 inch corner radius, promoting smooth chip evacuation and reduced chatter during aggressive cuts. A ZrN (zirconium nitride) coating provides enhanced surface hardness and heat resistance compared to uncoated carbide, extending tool life in a range of workpiece materials. This end mill is center-cutting, allowing direct plunging into the workpiece. It is a single-end, right-hand cut, right-hand flute tool suited for machinists working with CNC mills and manual milling machines.

This tool is well suited for finish milling, profiling, slotting, and contouring operations in ferrous and non-ferrous materials. The corner radius geometry reduces stress concentrations at the cutting edge, making it a practical choice for production environments where tool longevity and surface finish consistency matter. Machinists running aluminum, stainless, alloy steel, and similar materials will find the ZrN coating and micrograin carbide substrate appropriate for moderate-to-high speed cutting strategies. It is packaged and sold individually.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• ZrN coating enhances hardness and thermal resistance at the cutting edge
• 0.060 inch corner radius reduces edge chipping and stress concentration
• Center-cutting design allows direct plunge entry without pre-drilling
• 45-degree helix promotes efficient chip evacuation and smooth cutting action
• Right-hand cut and right-hand flute orientation standard for CNC and manual mills

Compatibility

Designed as an OEM-style replacement or direct-use end mill for standard 1/2 inch collet or end mill holder tooling systems on CNC machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following established toolroom practices. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully and evenly in the collet or tool holder to the recommended grip length to prevent runout and pullout during cutting. Verify tool holder and collet are clean and free of chips or coolant buildup before clamping.