Seco 10008057 Corner Radius End Mill 3/8 in 5 Flute Carbide

Product Description

The SECO 10008057 is a solid carbide corner radius end mill designed for precision milling operations in metal-cutting environments. Built to the S545R series specification, it features a 3/8 inch cutting diameter, a 0.0150 inch corner radius, and five flutes arranged in a right-hand spiral with a 45-degree high helix angle. The tool carries a PVD-applied HTA coating for elevated heat and wear resistance. With a 1 inch length of cut and a 2.5 inch overall length, it suits finish milling and profiling passes where edge integrity and dimensional accuracy are the priority. Licensed machinists and toolroom professionals are the primary users of this end mill.

This end mill is suited for high-speed finishing and semi-finishing of ferrous and non-ferrous materials in CNC machining centers and milling applications. The centercutting geometry allows plunge entry, adding versatility for pocketing and slotting operations. The straight cylindrical 3/8 inch shank seats directly into standard toolholders. The normal pitch and fixed helix (non-variable) design produces consistent chip evacuation in moderate-to-high surface footage applications.

Key Features

• Solid carbide construction for rigidity and long tool life in demanding cuts
• HTA PVD coating improves heat resistance and reduces built-up edge
• 5-flute design increases feed rates and improves surface finish versus 4-flute alternatives
• 0.0150 inch corner radius reduces stress concentrations at the cutting edge and workpiece corner
• 45-degree high helix angle promotes efficient chip evacuation and smooth cutting action
• Centercutting geometry enables direct plunge entry without a pre-drilled hole

Compatibility

Designed for use with standard cylindrical-bore toolholders accepting a 3/8 inch straight shank. Part of the SECO S545R series of corner radius end mills.

Installation Notes

Install into a compatible toolholder and torque to the toolholder manufacturer's specified clamping value before use. Verify runout does not exceed the 0.0005 inch maximum TIR specification after seating. Follow machine tool manufacturer guidelines for spindle speeds and feed rates appropriate to the workpiece material. Inspect the cutting edges for chipping or coating wear before each use and replace the tool if damage is observed.