Seco 02679361 Corner Chamfer End Mill 4.5mm 3 Flute

Product Description

The SECO 02679361 is a solid carbide corner chamfer end mill designed for precision material removal in demanding machining environments. Part of the JS553 series, this single-end mill features a 4.5 mm cutting diameter, a 12 mm length of cut, and three right-hand helical flutes set at a 48-degree helix angle. The cutting edges carry a 45-degree chamfer angle with a 0.045-inch chamfer width. It is coated with SIRON-A, a PVD-applied AlCrN-based coating that improves heat resistance and wear performance. Machinists and CNC operators install this tool in milling centers where both roughing and finishing passes are required in a single tool path.

This end mill is suited for use on steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium, covering ISO material groups P, M, K, N, and S. Its center-cutting capability and extended-reach geometry make it appropriate for operations that include shouldering, slotting, ramp-down entry, helical interpolation, drill milling, and plunging and recessing. The straight-cylindrical shank with a 6 mm diameter fits standard ER and hydraulic toolholders commonly found in production and job-shop environments.

Key Features

• 4.5 mm cutting diameter with a 45-degree chamfer angle and 0.045-inch chamfer width for consistent edge preparation
• SIRON-A PVD coating (AlCrN-based) for extended tool life on hard and abrasive workpiece materials
• 48-degree high-helix angle promotes efficient chip evacuation and reduces cutting forces
• Center-cutting and extended-reach design enables ramp-down, helical interpolation, and plunge entry
• Solid carbide construction with normal pitch and short-length-type flute geometry for rigidity
• Maximum TIR of 0.01 mm ensures runout control critical for chamfer accuracy

Compatibility

The 02679361 belongs to the SECO JS553 series and is cataloged under manufacturer part number 553045Z3.0-SIRON-A. It is designed for use on steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium in CNC milling applications requiring corner chamfering, slotting, and multi-operation capability.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. The machine spindle must be fully stopped and the tool changer in a safe state before mounting or removing the end mill. Use a calibrated toolholder within the shank diameter tolerance (h5) and verify runout at the cutting edge before beginning a production run. Consult the machine tool builder documentation and applicable shop-floor safe-work procedures for speeds, feeds, and clamping torque.