Seco 17004769 Square End Mill 0.125in 6 Flute Altin Carbide

Product Description

The SECO 17004769 is a solid carbide square end mill designed for high-performance material removal in hardened materials and steel. Built on SECO's MZ645 series, this single-end mill features a 0.125-inch cutting diameter, six spiral flutes, and a 45-degree helix angle that promotes aggressive chip evacuation and smooth cutting action. The AlTiN coating provides thermal resistance and hardness, making this tool well suited for dry or semi-dry machining at elevated cutting speeds. Micrograin carbide substrate adds toughness and edge retention. It is center-cutting, right-hand cut, with a straight cylindrical shank measuring 0.25 inches in diameter and a 3-inch overall length.

This end mill is engineered for machining hardened materials and steel in precision milling applications. The 0.375-inch length of cut and 0.38-inch reach length make it appropriate for shallow-to-moderate depth passes in die and mold work, toolroom operations, and production milling where tight tolerances and surface finish matter. A 0.005-inch maximum TIR specification reflects the close tolerances held on this tool. It is suited for CNC machining centers and manual mills with appropriate spindle speeds and feed rates for the workpiece material.

Key Features

• AlTiN coating for thermal resistance in hardened steel and difficult alloys
• Six flutes with 45-degree spiral helix for efficient chip evacuation
• Micrograin solid carbide substrate for edge retention and rigidity
• Center-cutting geometry allows plunge entry
• Straight cylindrical shank with tight diameter tolerance of -0.0001/-0.0003 inches
• Maximum TIR of 0.0005 inches for precise, repeatable cuts

Compatibility

Designed as a replacement or production-use square end mill in the SECO MZ645 series, intended for use with standard 0.25-inch collets or end mill holders on CNC machining centers and manual mills cutting hardened materials and steel.

Installation Notes

Installation should be performed by a machinist or CNC operator using a properly sized collet or end mill holder rated for the 0.25-inch shank diameter. Ensure the holder and spindle are clean and free of debris before seating the tool. Confirm runout at the cutting edge before commencing a cut, particularly given the close TIR specification. Always reference the machine tool manufacturer's guidelines and appropriate cutting data for AlTiN-coated carbide tooling when establishing spindle speed and feed rate.