Seco 17011751 Square End Mill 5/8 in 4 Flute Cobalt SPC408

Product Description

The SECO 17011751 is a cobalt square end mill designed for material removal in milling operations across a range of ferrous and non-ferrous workpiece materials. Built from M42 cobalt high-speed steel, it provides greater heat and wear resistance than standard HSS tools, making it suitable for tougher cuts and longer run times. The tool features a 0.625-inch mill diameter, a 2.5-inch length of cut, and a 4.625-inch overall length. Four spiral flutes with a 30-degree helix angle and a bright uncoated finish support chip evacuation and surface finish in general-purpose milling. The centercutting geometry allows the tool to plunge directly into the workpiece. This is a single-end tool in the long-length SPC408 series.

This end mill is suited for machining steel, stainless steel, cast iron, aluminum and other non-ferrous materials, and high-temperature alloys. It fits typical milling applications on vertical mills, CNC machining centers, and manual knee mills where a long-reach tool is needed. Right-hand cut and right-hand flute configuration follow standard spindle orientation for most setups. The long length of cut makes it useful for deep-pocket and side-wall milling where a standard-length tool cannot reach.

Key Features

• M42 cobalt construction for improved heat resistance over standard HSS
• 4 spiral flutes with 30-degree helix angle for efficient chip evacuation
• Centercutting geometry allows direct plunge entry
• Bright uncoated finish suitable for use with or without cutting fluid
• Long series SPC408 with 2.5-inch length of cut for deep-reach applications
• Right-hand cut and right-hand flute for standard spindle use

Compatibility

Designed as an OEM-style replacement or direct-fit tool for milling operations requiring a 5/8-inch shank end mill with long-series reach in steel, stainless steel, cast iron, aluminum, non-ferrous, and high-temperature alloy applications.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Use a properly sized collet or end mill holder matched to the 0.625-inch shank diameter to maintain runout within specification. Follow the machine manufacturer guidelines for tightening torque and confirm tool runout does not exceed the maximum TIR rating before beginning a cut.