Description

The SECO 17000012 is a solid micrograin carbide square end mill designed for precision material removal in aluminum and non-ferrous metals. It features a 1/4 inch mill diameter, a 3/8 inch length of cut, and a 4 inch overall length, placing it in the long-reach category for accessing deep features and pockets. The 45-degree helix angle promotes efficient chip evacuation in soft, gummy materials. Three spiral flutes with a right-hand cut and right-hand flute direction deliver smooth, consistent finishes. The bright uncoated finish is well-suited for aluminum where coatings can cause material adhesion issues. Licensed machinists and CNC operators install this tool in vertical and horizontal machining centers.

This end mill is built for milling aluminum, copper, brass, and other non-ferrous workpiece materials. The long 2-1/8 inch reach length allows it to enter deep slots, pockets, and contoured features without the spindle nose interfering. The centercutting geometry enables direct plunge entry into a workpiece. It is a single-end tool in the Series AN345 lineup with a straight 1/4 inch shank, making it compatible with standard ER collet chucks and end mill holders commonly found in CNC and manual milling setups.

Key Features

Solid micrograin carbide construction for rigidity and edge retention in non-ferrous applications
45-degree helix angle promotes efficient chip flow and reduces heat buildup in aluminum
Centercutting design allows direct plunge milling without a pre-drilled entry hole
Long-reach geometry with 2-1/8 inch reach length for deep slot and pocket work
Bright uncoated finish minimizes material pickup and built-up edge on aluminum
Right-hand cut, right-hand flute spiral configuration for use in standard CNC spindle rotation

Compatibility

Designed for use with standard 1/4 inch straight-shank toolholders, ER collet systems, and end mill holders. Primary workpiece material code N covers aluminum and non-ferrous metals. Series AN345 long-reach configuration.

Installation Notes

Installation should be performed by a qualified machinist or CNC technician. Power down and lock out the spindle before inserting or removing the tool from the holder. Ensure the shank is seated to the full recommended grip length in the collet or holder to minimize runout, noting a maximum TIR of 0.0005 inches. Do not use this tool on ferrous or hardened materials, as it is optimized for non-ferrous workpieces.