Harvey Tool 17156-C3 Corner Rounding End Mill 3/8 in

Product Description

The HARVEY TOOL 17156-C3 is a double-end corner rounding end mill designed for CNC machining applications that require consistent, repeatable edge-break profiles. Built from solid carbide and coated with AlTiN (aluminum titanium nitride), this tool delivers high heat resistance and extended tool life in ferrous and hardened materials. It features a 5/32 inch radius, a 3/8 inch mill diameter, and a 3/8 inch shank diameter, with 2 flutes optimized for smooth finish passes on corner profiles. The small tip diameter of 0.058 inches allows for tight clearance work in complex part geometries.

This end mill is suited for mold and die work, aerospace components, and precision machined parts where sharp corners must be replaced with a defined radius. The double-end design extends usable tool life by providing two cutting ends per tool. Machinists and CNC operators working in job shops or production environments will find this tool appropriate for finishing passes on steel, stainless, and high-temp alloys where edge quality is critical.

Key Features

• AlTiN coating provides high-temperature resistance and reduced friction in hard ferrous materials
• Double-end configuration doubles usable cutting surface per tool
• 5/32 inch corner radius with 0.058 inch tip diameter for tight-tolerance edge rounding
• Solid carbide construction for rigidity and wear resistance
• 2-flute design supports smooth surface finish on corner profiles
• Flared series geometry suited to corner rounding applications on a range of workpiece materials

Compatibility

Designed as an OEM-style replacement or direct-fit tool for CNC milling setups using 3/8 inch collet or end mill holders. Part of the HARVEY TOOL Corner Rounding End Mills - 2 and 4 Flute - Flared series.

Installation Notes

Installation and use should be performed by a qualified CNC machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the 3/8 inch shank fully in a clean, properly sized collet or tool holder and torque the retention nut per the holder manufacturer specification. Inspect the cutting edges for chips or damage before each use, as carbide tools are brittle and should not be used if chipped.