Seco 17003148 Square End Mill 5/16 Inch 3 Flute Carbide

Product Description

The SECO 17003148 is a solid carbide square end mill designed for precision milling of aluminum and non-ferrous materials. It features a 5/16 inch cutting diameter, a 2.25 inch length of cut, and a 4 inch overall length, making it well suited for medium-depth profiling, slotting, and contouring operations. The 3-flute, 45-degree helix geometry promotes efficient chip evacuation in gummy, non-ferrous alloys while maintaining surface finish quality. The micrograin carbide substrate provides the edge strength and wear resistance expected in production environments. This is a centercutting tool, allowing plunge entry in addition to conventional side milling.

This end mill belongs to the SECO Series A345 and is intended for use on CNC machining centers, vertical mills, and similar machine tool platforms where tight tolerances and consistent performance are required. The bright uncoated finish makes it a straightforward choice for aluminum, copper, brass, and other non-ferrous workpiece materials where coatings may cause buildup. It is a single-end tool with a straight 5/16 inch shank for standard collet or end mill holder mounting. Machinists and CNC operators in job shops, production facilities, and aerospace or general manufacturing environments will find this tool fits standard tooling setups without adapters.

Key Features

• Solid micrograin carbide construction for edge retention and rigidity in non-ferrous cutting
• 3-flute, 45-degree helix spiral flute design promotes chip evacuation in aluminum and soft alloys
• Centercutting geometry allows direct plunge entry without pre-drilling
• Bright uncoated finish eliminates coating adhesion issues on aluminum and non-ferrous materials
• Right-hand cut and right-hand flute configuration for standard spindle rotation
• Straight shank fits standard collets and end mill holders without additional adapters

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for CNC machining centers and vertical milling machines accepting a 5/16 inch straight shank end mill in ER or similar collet systems. Primary workpiece material compatibility is aluminum and non-ferrous materials per Series A345 application guidelines.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool changer or drawbar is disengaged before inserting or removing the tool. Seat the shank fully in the collet or end mill holder to the recommended insertion depth before tightening to the holder manufacturer's specification. Verify runout against the published TIR maximum of 0.0005 inch before commencing a production cut.