Promax 117-02812 Roughing Finishing End Mill 7/16 in

Product Description

The PROMAX 117-02812 is a roughing finishing end mill designed for high-efficiency material removal with a quality surface finish in a single operation. Built with 3 flutes and a chipbreaker geometry, it breaks chips aggressively to reduce heat and tool pressure during roughing passes while leaving a finish suitable for many final applications. The 7/16 inch diameter cutter features a 0.02 inch corner radius on a corner radius end profile, a 35-degree helix angle, and a TiCN (titanium carbonitride) coating for improved wear resistance and lubricity. Installed by machinists and tool-and-die professionals in CNC and manual milling operations.

This end mill is suited for milling ferrous and non-ferrous metals where combined roughing and finishing passes are required. The single-end, right-hand cutting, right-hand flute configuration makes it a standard fit for conventional vertical and horizontal milling setups. The chipbreaker design is especially effective in applications where long, stringy chips are a concern, such as aluminum alloys, steel, and stainless steel. The 1 inch length of cut and 2-3/4 inch overall length position it for general-purpose cavity and profile milling without extended-reach tooling requirements.

Key Features

• Chipbreaker flute geometry reduces chip load and heat during roughing passes
• 0.02 inch corner radius protects cutting edges and reduces stress concentration at corners
• TiCN coating improves surface hardness and wear resistance over uncoated carbide
• 35-degree helix angle promotes smooth cutting action and chip evacuation
• Right-hand cut, right-hand flute, single-end configuration for standard milling setups
• 1 inch length of cut with 2-3/4 inch overall length for general-purpose depth applications

Compatibility

Designed as a standard shank end mill compatible with 7/16 inch collets, end mill holders, and shrink-fit tooling systems used in CNC machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and locked out before changing tooling. Seat the 7/16 inch shank fully and evenly in the holder and torque the retention mechanism per the toolholder manufacturer's specification. Verify runout with a dial indicator before initiating a cutting pass.