Promax 106-01212 Corner Radius End Mill 3/16 in 3 Flute

Product Description

The PROMAX 106-01212 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 3/16 inch diameter with a 0.01 inch corner radius that reduces stress concentration at the cutting edge, extending tool life in high-feed operations. The three-flute geometry and 35-degree helix angle promote smooth chip evacuation and stable cutting at elevated feed rates. A TiCN coating adds surface hardness and wear resistance, making this end mill well suited for ferrous and non-ferrous materials. Machinists and CNC operators install this tool in standard end mill holders or collet chucks.

This end mill is appropriate for light to medium material removal passes in milling centers and CNC machining operations where a small corner radius profile is required. It is a single-end, centercutting design, meaning it can plunge directly into workpiece material as well as cut laterally. The right-hand flute direction and right-hand cutting orientation are standard for conventional CNC spindle configurations. Typical applications include slot milling, profile milling, and finishing passes on hardened and unhardened steels, aluminum, and similar materials where edge chipping control is a priority.

Key Features

• 0.01 inch corner radius reduces cutting-edge chipping and extends tool life in interrupted cuts
• TiCN coating provides elevated surface hardness and improved wear resistance over uncoated carbide
• Micrograin solid carbide substrate delivers rigidity and dimensional stability at the cutting zone
• 35-degree helix angle promotes efficient chip evacuation and reduces cutting forces
• Centercutting design allows direct plunge entry without pre-drilling
• Three-flute configuration balances chip clearance with material removal rate

Compatibility

Designed for use in standard 3/16 inch end mill holders, collet chucks, and compatible toolholding systems on CNC and manual milling machines accepting right-hand cutting tools.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before loading or unloading the tool. Seat the shank fully into the collet or toolholder to the recommended engagement depth before tightening to avoid runout. Verify spindle speed and feed rate settings against the material being cut before engaging the workpiece, as carbide tooling is sensitive to improper parameters that can cause sudden fracture.