Accupro 12180359 Corner Rounding End Mill 3/8 in 2 Flute

Product Description

The ACCUPRO 12180359 is a double-end corner rounding end mill designed to produce consistent radius profiles on workpiece edges in precision machining applications. Built from solid carbide and coated with AlTiN (aluminum titanium nitride), it delivers thermal resistance and extended tool life in demanding cutting environments. The mill has a 0.156 inch radius, a 3/8 inch diameter, and a 3/8 inch shank diameter with a 0.063 inch tip diameter. Two right-hand flutes with right-hand cutting direction make it suitable for standard CNC machining center setups. Machinists and tool-and-die professionals use this tool for edge finishing on ferrous and non-ferrous materials.

This corner rounding end mill is used in job shops and production machining environments where edge-breaking and radius profiling are required on milled components. The double-end configuration provides two usable cutting ends, extending tool utility before replacement is needed. Typical applications include finishing passes on steel, stainless, aluminum, and hardened alloy parts where a controlled 0.156 inch radius is specified. It fits standard 3/8 inch ER or end mill collet toolholders used on vertical and horizontal machining centers.

Key Features

• Solid carbide construction for rigidity and wear resistance in high-speed cuts
• AlTiN coating provides heat resistance and reduces built-up edge in ferrous materials
• Double-end design offers two cutting ends per tool, extending service life
• 0.156 inch corner radius for precise, repeatable edge profiling
• Right-hand cut and right-hand flute geometry for standard CNC spindle operation
• 0.063 inch tip diameter allows clearance in tight corner geometries

Compatibility

Designed for use with standard 3/8 inch collet toolholders on CNC machining centers. Consult toolholder manufacturer specifications to confirm runout and clamping requirements before use.

Installation Notes

This tool is installed by a machinist or CNC tooling technician. Ensure the spindle is fully stopped and the machine is in a safe, powered-down state before loading or unloading the tool. Seat the shank fully in a clean, properly sized collet and torque the collet nut to the toolholder manufacturer specification. Inspect the cutting edges for chips or damage before each use, as carbide is brittle and can fracture if mishandled.