Harvey Tool 16040 Back Corner Rounding End Mill 3-flute

Product Description

The HARVEY TOOL 16040 is a solid carbide back corner rounding end mill designed for machining internal corner radii on workpiece backs and undercuts. Built with three flutes and a 0.04-inch radius, this single-end tool removes material cleanly in right-hand cutting and right-hand flute configurations. The bright uncoated finish suits general-purpose applications where coating is unnecessary or unwanted. With a 0.25-inch mill diameter and 0.25-inch shank diameter, it mounts directly in standard toolholding systems without adapters. Machinists and tool-and-die professionals rely on this geometry for deburring, edge-breaking, and back-side profiling operations on CNC machining centers and manual mills.

This end mill fits residential and commercial machine shop environments, including job shops, production facilities, and toolroom applications. It is sized for lighter-duty back corner rounding tasks where a compact 0.25-inch diameter tool is appropriate. The 2.5-inch overall length provides adequate reach for most standard back-side operations without excessive overhang. Solid carbide construction maintains rigidity and cutting-edge integrity even at elevated spindle speeds typical of modern CNC equipment.

Key Features

• 0.04-inch corner radius for consistent back-side edge profiling
• Three-flute geometry balances chip evacuation and surface finish
• Solid carbide construction delivers rigidity and wear resistance
• Bright uncoated finish suitable for general-purpose and non-ferrous applications
• Right-hand cut and right-hand flute direction for standard CNC and manual mill setups
• Single-end design with matched mill and shank diameter for direct toolholder mounting

Compatibility

Designed as an OEM-style back corner rounding end mill for use in standard 0.25-inch collets and toolholders on CNC machining centers and manual milling machines.

Installation Notes

Installation is performed by qualified machinists following standard toolchanging procedures. Ensure the spindle is fully stopped and the machine is in a safe state before inserting or removing the tool. Seat the 0.25-inch shank fully in a clean, undamaged collet or end mill holder and torque the retention mechanism to the toolholder manufacturer specification. Inspect the cutting edges for chips or damage before each use, and confirm runout with a dial indicator where surface finish tolerances are tight.