Seco 10008586 Corner Radius End Mill 3/4 in 4 Flute Carbide

Product Description

The SECO 10008586 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. Built to STR440.2 series specifications, it features a 3/4 inch diameter, a 0.0600 inch corner radius, and four flutes with a variable helix angle of 40 degrees. The HTA PVD coating improves wear resistance and heat management during high-feed applications. With a 1-1/2 inch length of cut and 4 inch overall length, this tool is suited for cavity work, profiling, and finish milling where controlled edge geometry matters. It is a single-end, centercutting design installed by CNC machinists and tool-and-die professionals.

This end mill is intended for use in CNC machining centers and manual mills where a 3/4 inch Weldon flat shank is required. The short flute length and rigid carbide substrate make it well suited for slotting and peripheral milling in medium-to-hard workpiece materials. The corner radius geometry distributes cutting forces away from sharp tool edges, extending tool life in high-load passes. Typical applications include mold and die work, general metalworking, and production machining environments where consistent corner geometry is critical.

Key Features

• 0.0600 inch corner radius with tolerance of +0.00100 to -0.00100 inches for repeatable edge geometry
• Solid carbide substrate provides rigidity and wear resistance in demanding cutting conditions
• HTA PVD coating enhances heat resistance and reduces built-up edge formation
• Variable helix design reduces harmonic vibration and chatter during cutting
• Weldon flat shank (3/4 inch diameter) ensures positive tool retention in standard toolholders
• Centercutting capability allows plunge entry into the workpiece

Compatibility

Designed for use with standard 3/4 inch bore toolholders compatible with Weldon flat shank end mills. Part of the SECO STR440.2 series.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine powered down and spindle locked. Seat the Weldon flat shank fully in the toolholder and confirm set screw engagement against the flat before torquing. Verify runout does not exceed the maximum TIR specification of 0.0005 inches using a dial indicator before initiating a cut. Follow machine manufacturer guidelines and applicable shop safety protocols when handling carbide tooling.