Seco 17011650 Square End Mill 5/8 in 2 Flute Cobalt SP205

Product Description

The SECO 17011650 is a single-end square end mill designed for metal removal in demanding machining applications. Built from M42 cobalt high-speed steel, this tool delivers heat resistance and edge retention when cutting steel, stainless steel, cast iron, and high-temperature alloys. It carries a bright uncoated finish and features a right-hand cut with right-hand spiral flutes at a 30-degree helix angle. The 5/8 inch cutting diameter and 1-5/16 inch length of cut make it well-suited for slotting, profiling, and peripheral milling. Centercutting capability allows plunge entry without a pre-drilled pilot hole. CNC machinists and manual mill operators alike will reach for this tool in production and maintenance environments.

The 17011650 is a short-series end mill in the SP205 line, sized for rigid setups in knee mills, VMCs, and horizontal machining centers. Its primary workpiece materials are steel, stainless steel, cast iron, and high-temperature alloys, making it a practical choice for job shops handling a wide range of ferrous and alloy materials. The 5/8 inch shank diameter fits standard collets, end mill holders, and shrink-fit tooling systems. With no chipbreaker and no variable helix or index, this is a straightforward, general-purpose geometry suited to consistent, repeatable cuts.

Key Features

• M42 cobalt construction for improved heat and wear resistance over standard HSS
• Centercutting design allows direct plunge entry into workpiece material
• 30-degree helix angle with spiral flute geometry for smooth chip evacuation
• Right-hand cut and right-hand flute for standard spindle direction
• Bright uncoated finish suitable for use with or without cutting fluid
• Short-series length provides added rigidity and reduced deflection

Compatibility

Designed for use in standard 5/8 inch collets, end mill holders, and shrink-fit tooling systems on manual knee mills and CNC machining centers. Rated for cutting steel, stainless steel, cast iron, and high-temperature alloys per material codes P, M, K, and S.

Installation Notes

Installation is performed by a machinist or tooling technician. Ensure the machine spindle is fully stopped and locked before inserting or removing the end mill from its holder. Confirm collet or holder bore size matches the 5/8 inch shank before clamping to specified torque per toolholder manufacturer guidelines. Inspect the cutting edges for chips or wear before each use and replace when runout exceeds the 0.0010 inch TIR maximum.