Accupro 12180357 Corner Rounding End Mill 3/8 in 2 Flute

Product Description

The ACCUPRO 12180357 is a solid carbide corner rounding end mill designed to machine precise radius profiles on workpiece edges and corners. With a 0.156-inch corner radius and a 0.375-inch mill diameter, it produces consistent, repeatable fillets in ferrous and non-ferrous metals, alloys, and hard plastics. The double-end configuration doubles usable tool life before replacement. The bright, uncoated carbide finish suits applications where coating compatibility or cost is a factor. This tool is used by machinists and tool-and-die professionals in CNC milling operations where edge-break geometry must meet tight print tolerances.

This end mill is suited for use on CNC machining centers and manual knee mills in job shop, production, and toolroom environments. Its right-hand cutting and right-hand flute direction are compatible with standard spindle rotation. The 0.063-inch tip diameter allows it to reach into tight corner geometries without interference. Typical applications include edge rounding on aluminum extrusions, steel components, and precision machined parts where a uniform radius replaces a sharp corner for strength, fit, or finish requirements.

Key Features

• 0.156-inch corner radius for consistent fillet geometry on milled edges
• Solid carbide construction for rigidity and wear resistance in demanding materials
• Double-end design extends usable tool life per unit
• Right-hand cut and right-hand flute direction for standard CNC spindle use
• Bright uncoated finish suitable for a wide range of workpiece materials
• 0.063-inch tip diameter for access to tight corner profiles

Compatibility

Designed as a direct-fit replacement or standard toolroom end mill for CNC machining centers and manual mills accepting a 3/8-inch shank diameter tool holder or collet.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Secure the 3/8-inch shank in a matching collet, end mill holder, or shrink-fit holder to the manufacturer-specified clamping torque for the holder type in use. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before loading or unloading the tool. Inspect the cutting edges for chips or damage before each use, as carbide tools can fracture if run with pre-existing edge damage.