Seco 17000013 Square End Mill 5/16 Inch 3 Flute Carbide

Product Description

The SECO 17000013 is a solid carbide square end mill engineered for precision milling of aluminum and non-ferrous materials. It features a 5/16-inch cutting diameter, a 7/16-inch length of cut, and a 4-inch overall length, placing it in the long-length category for extended reach applications. The 45-degree helix angle promotes efficient chip evacuation in gummy, soft metals. Three spiral flutes and a right-hand cut with right-hand flute direction deliver smooth, consistent material removal. The micrograin carbide substrate provides the hardness and edge retention required for high-speed non-ferrous machining operations. This is a single-end, centercutting design, allowing plunge entry as well as peripheral and slot milling. It ships uncoated (bright finish).

This end mill is suited for production and maintenance machining environments where aluminum alloys, copper, brass, and similar non-ferrous workpiece materials are processed. The long-reach geometry, with a 2-1/8-inch reach length, makes it appropriate for deep-slot milling, profile work, and cavity machining where standard-length tools lack sufficient clearance. It is used in CNC machining centers, knee mills, and manual mills by machinists and toolroom technicians working on light-metal components.

Key Features

• Micrograin solid carbide construction for rigid, high-precision cutting in non-ferrous materials
• 45-degree helix angle optimized for chip evacuation in aluminum and soft metals
• Centercutting design allows direct plunge entry without a pre-drilled pilot hole
• Long-length series (AN345) with 2-1/8-inch reach for deep-slot and cavity milling
• Bright/uncoated finish compatible with cutting fluids and coolants standard for aluminum work
• Straight shank with tight shank diameter tolerance (-0.0001/-0.0004 inch) for secure collet or chuck holding

Compatibility

Designed for use in standard straight-shank collet systems and end mill holders accepting a 5/16-inch shank. Primary workpiece material designation is Aluminum and Non-Ferrous (Material Code N). Part of the SECO AN345 long-length series.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and locked out before changing tooling. Seat the shank fully in the collet or holder to the minimum engagement depth recommended for the holder type, and torque the retention nut per the holder manufacturer specification. Verify runout does not exceed the maximum TIR of 0.0005 inch after installation before initiating a cut.