Seco 17000015 Square End Mill 3/8 in 3 Flute Carbide

Product Description

The SECO 17000015 is a solid carbide square end mill designed for high-performance material removal in aluminum and non-ferrous applications. Built to Series AN345 specifications, this single-end tool features a 3/8 inch mill diameter, a 1/2 inch length of cut, and a 45-degree helix angle optimized for efficient chip evacuation in soft and gummy materials. The micrograin carbide substrate provides edge stability at higher feed rates. With a 4 inch overall length and 2-1/8 inch reach, this is a long-reach configuration suited for pocketing, slotting, and profiling operations where standard-length tools cannot access the workpiece geometry. It is installed and used by CNC machinists and tool-and-die professionals.

This end mill is intended for machining aluminum, brass, copper, plastics, and other non-ferrous materials (ISO material group N). Its centercutting geometry allows plunge entry directly into the workpiece. The bright uncoated finish is appropriate where coatings may react with certain non-ferrous alloys or where re-sharpening is a priority. The 3/8 inch straight shank fits standard ER collets, end mill holders, and shrink-fit tooling used on vertical and horizontal CNC machining centers as well as manual knee mills.

Key Features

• 3 flutes with 45-degree right-hand spiral helix for aggressive chip clearance in non-ferrous materials
• Centercutting design enables direct plunge milling without a pre-drilled entry hole
• Micrograin solid carbide construction for edge retention and dimensional consistency
• Long-reach configuration with 2-1/8 inch reach and 4 inch overall length for deep-cavity access
• Bright uncoated finish compatible with aluminum and non-ferrous workpieces
• Right-hand cut and right-hand flute geometry for conventional CNC spindle rotation

Compatibility

Designed as a Series AN345 replacement and standard fitment for CNC machining centers and manual mills using 3/8 inch straight-shank toolholders, ER collets, or shrink-fit systems. Optimized for aluminum and non-ferrous workpiece materials (ISO group N).

Installation Notes

Installation is performed by qualified CNC machinists or machining center operators. Ensure the spindle is fully stopped and the machine is in an e-stop or lockout-tagout state before inserting or removing tooling. Confirm the collet or toolholder bore is clean and within specified runout tolerance before tightening; the maximum TIR for this tool is 0.0005 inches. Follow machine tool manufacturer torque specifications for the toolholder type in use.