Accupro 12179317 Corner Rounding End Mill 1/8 in 2 Flute Tin

Product Description

The ACCUPRO 12179317 is a solid carbide corner rounding end mill designed to produce consistent radius profiles on workpiece edges in precision machining operations. Built with a 0.04-inch radius and a 1/8-inch mill diameter, this double-end tool delivers two usable cutting ends, extending tool life between changeovers. The TiN (titanium nitride) coating reduces friction, improves surface finish quality, and increases wear resistance on ferrous and non-ferrous materials. With two right-hand flutes and a right-hand cutting direction, it suits standard CNC and manual milling setups. Machinists and tool-and-die professionals working with tight-tolerance edge-break requirements will find this geometry consistent across both ends.

This end mill is suited for light-duty corner rounding passes on aluminum, mild steel, brass, and similar machinable materials. The small 1/8-inch shank diameter makes it compatible with collet-style toolholders and small-diameter spindle applications. Typical use cases include edge preparation on machined components, mold and die work, and fixture fabrication where a controlled, repeatable radius is required. The double-end configuration allows the operator to index to the second cutting end when the first shows wear, reducing per-part tooling cost in production runs.

Key Features

• Double-end design provides two cutting ends per tool, extending usable tool life
• TiN coating reduces heat buildup and improves wear resistance
• Solid carbide construction maintains rigidity and dimensional accuracy at high RPM
• Right-hand cut, right-hand flute geometry compatible with standard milling setups
• 0.04-inch radius produces a precise, consistent edge break on machined parts
• 1/8-inch shank fits standard collet toolholders without adapter sleeves

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide corner rounding end mill for standard 1/8-inch collet toolholders used in CNC machining centers and manual vertical mills.

Installation Notes

Installation is performed by a machinist or toolroom technician. Secure the shank fully into the collet to the recommended engagement depth before tightening to prevent runout. Ensure the spindle is fully stopped and the machine is in a safe, locked state before changing tooling. Do not exceed the tool manufacturer's recommended speed and feed parameters for the workpiece material and coating type.