Seco 17011645 Square End Mill 0.5 in 2 Flute Cobalt

Product Description

The SECO 17011645 is a single-end cobalt square end mill designed for material removal in ferrous and high-temperature alloy applications. Built from M42 cobalt high-speed steel, it offers improved heat and wear resistance compared to standard HSS tooling. The 0.5 inch cutting diameter pairs with a 1 inch length of cut and a 3 inch overall length, making it well suited for slotting, profiling, and peripheral milling operations on machining centers and manual mills. The 30-degree right-hand spiral flute geometry promotes efficient chip evacuation, and the bright uncoated finish is appropriate for use with cutting fluids or dry cutting on a range of ferrous metals. This end mill is installed and maintained by machinists and tool-and-die professionals.

The 17011645 is engineered for use on steel, stainless steel, cast iron, and high-temperature alloys, corresponding to ISO material groups P, M, K, and S. Its centercutting design permits plunge entry directly into the workpiece, expanding its usefulness across profiling, ramping, and pocket-milling operations. The regular-length geometry and 0.5 inch shank diameter suit standard ER collet chucks, end mill holders, and Weldon-style holders commonly found in job shop and production environments.

Key Features

• M42 cobalt construction provides elevated heat resistance for demanding ferrous and high-temp alloy cuts
• 30-degree right-hand spiral flute promotes efficient chip evacuation and reduces cutting forces
• Centercutting geometry allows direct plunge entry without a pilot hole
• Bright uncoated finish compatible with cutting fluids and dry machining setups
• Single-end design with 2 flutes balances chip clearance and edge strength for general-purpose work
• Regular-length body fits standard toolholders without extended-reach clearance concerns

Compatibility

Designed for use with steel, stainless steel, cast iron, and high-temperature alloys (ISO groups P, M, K, S). The 0.5 inch shank diameter fits standard ER collet chucks and end mill holders accepting a 0.5 inch shank. Part of the SECO SP205 series.

Installation Notes

Installation is performed by qualified machinists following shop safety procedures. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Verify holder bore and collet size match the 0.5 inch shank before torquing to the toolholder manufacturer's specification. Inspect the cutting edges for damage before each use and confirm runout is within acceptable limits using a dial indicator.