Accupro 12180355 Corner Rounding End Mill 3/8 in 2 Flute

Product Description

The ACCUPRO 12180355 is a double-end corner rounding end mill designed to produce smooth, consistent radius profiles on metal workpieces. It carries a 0.14 inch corner radius and a 3/8 inch mill diameter, making it well-suited for light-to-medium contouring and edge-breaking operations on precision components. The cutting geometry features two right-hand flutes with right-hand cutting direction, ground from solid carbide for rigidity and wear resistance. A titanium carbonitride (TiCN) coating reduces friction and extends tool life in abrasive or hardened materials. The double-end design effectively doubles the usable cutting life before the tool is retired, lowering cost-per-edge on production runs.

This end mill is intended for use in CNC machining centers, vertical mills, and manual knee mills running ferrous and non-ferrous stock. It is appropriate for aerospace, automotive, and general precision machining applications where radiused edges are required to reduce stress concentrations, improve part aesthetics, or meet print callouts. The 3/8 inch shank diameter fits standard ER collet systems and side-lock holders commonly found in production shop environments. Machinists and CNC operators performing edge profiling, radius blending, or corner-break work on steel, stainless, cast iron, and aluminum will find this tool directly applicable.

Key Features

• Solid carbide construction provides superior rigidity and wear resistance compared to HSS tooling
• TiCN coating reduces built-up edge and extends tool life in abrasive and hardened materials
• Double-end design delivers two usable cutting ends, maximizing value per tool
• 0.14 inch corner radius produces consistent, repeatable radiused profiles
• Right-hand cut and right-hand flute geometry compatible with standard spindle rotation
• 0.095 inch tip diameter accommodates tight-corner and blend radius operations

Compatibility

Designed as a direct-fit replacement or production tool for CNC and manual milling applications requiring a 3/8 inch shank, 0.14 inch corner radius, and double-end solid carbide corner rounding geometry.

Installation Notes

Installation is performed by a machinist or CNC operator using a calibrated torque wrench and the appropriate collet or tool holder for a 3/8 inch shank diameter. Confirm spindle and tool holder are clean and free of chips before seating the tool. Set cutting parameters — speed, feed, and depth of cut — based on workpiece material hardness and machine rigidity; do not rely on generic defaults when machining hardened steels. Inspect both ends of the double-end tool before first use and rotate to the unused end only when the active end shows measurable wear.