Kennametal 5351900 Corner Radius End Mill 3/4 in 6 Flute

Product Description

The KENNAMETAL 5351900 is a solid carbide corner radius end mill designed for high-performance material removal in demanding machining applications. It carries a 3/4 inch mill diameter, a 0.06 inch corner radius, and six right-hand flutes arranged in a close-pitch, high-helix spiral configuration. The AlTiN PVD coating provides thermal resistance and wear protection, making this tool well-suited for finishing cuts in hard and abrasive workpiece materials. At 4 inches overall length with a 1.625 inch length of cut, the 5351900 is built for rigidity and reduced deflection. It is centercutting and accepts a straight-cylindrical shank for standard toolholder compatibility. Licensed machinists and CNC programmers in production and job shop environments are the primary users.

This end mill is rated for primary use in steel, stainless steel, superalloys and titanium, and hard materials, covering ISO material groups P, M, S, and H. It is classified as a finishing tool within the UJDE series, indicating it is optimized for light-depth, high-feed finishing passes rather than aggressive roughing operations. Compatible toolholding includes HC 1/2 through HC 1-1/4 hydraulic sleeves with inch bores, HC 20M through HC 32M hydraulic sleeves metric with inch bores, and HC-HSK Form A holders. This makes it well-matched to precision toolholding systems that minimize runout during finishing operations on difficult alloys.

Key Features

• Solid carbide submicron-grade construction for rigidity and edge retention in hard materials
• AlTiN PVD coating provides heat and wear resistance in steel, stainless, titanium, and superalloy cuts
• Six-flute close-pitch design increases feed rate potential during finishing passes
• 0.06 inch corner radius reduces stress concentration and improves surface finish at part edges
• High-helix, right-hand spiral flutes promote chip evacuation and smooth cutting action
• Centercutting capability allows plunge entry without a pre-drilled start hole

Compatibility

Designed for use with HC 1/2 through HC 1-1/4 hydraulic sleeves with inch bores, HC 20M through HC 32M hydraulic sleeves metric with inch bores, and HC-HSK Form A toolholding systems. Suited for machining steel, stainless steel, superalloys and titanium, and hard materials (ISO groups P, M, S, H).

Installation Notes

Installation and operation of this end mill should be performed by a qualified machinist or CNC tooling technician. Confirm toolholder runout is within acceptable limits before use, as excessive runout accelerates edge wear and reduces surface finish quality on finishing passes. Ensure the machine spindle and toolholder are clean and free of debris before seating the shank. Follow the machine tool manufacturer's guidelines and applicable workplace safety standards when setting cutting parameters.