Seco 03115987 Corner Radius End Mill 3/4 in 6 Flute Altin

Product Description

The SECO 03115987 is a solid carbide corner radius end mill designed for high-performance material removal in demanding machining applications. Featuring a 3/4 inch diameter, a 2-1/2 inch length of cut, and a 0.0300 inch corner radius, this tool is built for roughing operations where edge durability and chip evacuation are critical. The 6-flute, right-hand spiral geometry with a close pitch and 38-degree helix angle drives aggressive stock removal while maintaining surface finish. An AlTiN PVD coating extends tool life in high-heat cutting environments. The single-end, centercutting design allows plunge entry and full radial engagement across a range of ferrous and exotic workpiece materials.

This end mill is suited for machining steel, stainless steel, cast iron, superalloys, and titanium in CNC milling centers running production or job-shop work. The 5 inch overall length and straight-cylindrical 3/4 inch shank fit standard toolholders used in vertical and horizontal machining centers. The series SCS638R designation places this tool in a family engineered for close-tolerance roughing where chipbreaker geometry helps manage chip load and heat buildup. Machinists working ferrous alloys and high-temperature superalloys will find this tool appropriate for semi-finish and roughing passes requiring consistent corner geometry.

Key Features

• Solid carbide micrograin construction for rigidity and wear resistance in tough materials
• AlTiN PVD coating provides thermal barrier performance in dry and semi-dry cutting of steel and superalloys
• 6-flute close-pitch design maximizes metal removal rate during roughing passes
• Centercutting geometry allows direct plunge milling without pre-drilled entry
• Integrated chipbreaker reduces cutting forces and aids chip evacuation in deep pockets
• 0.0300 inch corner radius with tight tolerance (+0.00100 to -0.00100 inch) protects corners and reduces stress concentration

Compatibility

Designed for use with standard straight-bore toolholders accepting a 3/4 inch cylindrical shank. Primary workpiece material compatibility includes steel, stainless steel, cast iron, superalloys, and titanium as specified by the manufacturer.

Installation Notes

Installation is performed by machinists or CNC setup technicians using a compatible toolholder torqued to machine specifications before spindle operation. Ensure the shank is fully seated and the toolholder is clean and free of chips or debris before tightening. Power down and lock out the machine spindle before any tool change. Verify runout does not exceed the listed TIR maximum of 0.0005 inch after seating to maintain dimensional accuracy and tool life.