Seco 17011624 Square End Mill 1/8 in 2 Flute Cobalt SP205

Product Description

The SECO 17011624 is a single-end square end mill designed for precision milling in demanding metalworking applications. Built from M42 cobalt high-speed steel, this tool delivers hardness and heat resistance needed when cutting steel, stainless steel, cast iron, and high-temperature alloys. The cutting diameter is 0.125 inches with a 0.375-inch length of cut, a 0.375-inch shank diameter, and an overall length of 2.3125 inches. The 2-flute spiral configuration at a 30-degree helix angle promotes chip evacuation and surface finish quality. The bright uncoated finish is standard for cobalt tools used in general-purpose ferrous machining.

This end mill is suited for slotting, profiling, and plunge cutting operations in job shops, tool rooms, and production environments. The centercutting geometry allows direct plunge entry without a pre-drilled hole. Primary workpiece materials include steel (P), stainless steel (M), cast iron (K), and high-temperature alloys (S). Right-hand cut and right-hand flute orientation match standard CNC and manual milling machine spindle configurations. This tool belongs to the SECO SP205 series, designed for general-purpose cobalt end milling in fractional inch sizes.

Key Features

• M42 cobalt steel construction for elevated heat and wear resistance
• 2-flute spiral design with 30-degree helix for efficient chip removal
• Centercutting geometry enables direct plunge milling
• Bright uncoated finish — compatible with cutting fluids and dry cutting on ferrous materials
• Right-hand cut, right-hand flute for standard spindle use
• No chipbreaker, no variable helix — straightforward geometry for consistent results

Compatibility

Designed for use in standard milling machines and CNC machining centers accepting a 0.375-inch shank. Suitable for cutting steel, stainless steel, cast iron, and high-temperature alloys per SECO SP205 series specifications.

Installation Notes

Installation of end mills should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully powered down and locked out before changing tooling. Use a properly sized collet or end mill holder rated for the 0.375-inch shank diameter to maintain concentricity within the stated TIR of 0.001 inches. Verify runout with a dial indicator before beginning a cut, and follow the machine manufacturer guidelines for speed and feed recommendations based on workpiece material.