Seco 17016431 Square End Mill 3/4 in 4 Flute Cobalt Ticn

Product Description

The SECO 17016431 is a single-end square end mill designed for material removal in ferrous and non-ferrous machining applications. Built from M42 cobalt high-speed steel and coated with TiCN, it delivers elevated heat and wear resistance compared to standard HSS tooling. The cutter measures 0.75 inches in diameter with a 1.625-inch length of cut and a 3.875-inch overall length. Four right-hand spiral flutes at a 30-degree helix angle promote efficient chip evacuation and smooth cutting action. The centercutting geometry allows plunge milling as well as conventional side milling. This tool is well suited for machinists and toolroom operators working on manual mills, CNC machining centers, and knee mills.

The 17016431 is rated for use on steel, stainless steel, cast iron, aluminum and non-ferrous materials, and high-temperature alloys, covering ISO material groups P, M, K, N, and S. The short-length classification makes it a rigid choice for general-purpose slotting, profiling, and peripheral milling where reach is not a constraint. The 3/4-inch shank diameter matches standard collets and end mill holders common in production and toolroom environments. This tool is part of the SECO SPC408 series.

Key Features

• M42 cobalt construction for improved hot hardness and wear life over standard M2 HSS
• TiCN coating reduces friction and extends tool life on steel and stainless applications
• 4-flute, 30-degree helix spiral geometry for balanced chip load and surface finish
• Centercutting design allows direct plunge entry without pre-drilling
• Right-hand cut and right-hand flute configuration for standard spindle rotation
• Short-length series for maximum rigidity in slotting and profiling operations

Compatibility

Designed as a direct-fit replacement or standard toolroom selection for 3/4-inch end mill holders, collet chucks, and Weldon-shank holders used in manual and CNC milling machines. Rated for ISO material groups P, M, K, N, and S as specified by the manufacturer.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's clamping and runout specifications. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the shank fully into the holder to the recommended engagement depth and verify runout with a dial indicator before cutting. Do not exceed the tool's rated length-of-cut depth in a single pass.