Iscar 5621027 Corner Chamfer End Mill 0.625 in 4 Flute

Product Description

The ISCAR 5621027 is a solid carbide corner chamfer end mill designed for precision milling operations where a controlled chamfer edge is required at the corner of a workpiece feature. With a 0.625-inch cutting diameter and a 0.02-inch chamfer width, this tool produces consistent edge breaks and transition angles in a single pass. The 4-flute, right-hand spiral geometry with a 30-degree helix angle promotes efficient chip evacuation and smooth surface finishes. A TiAlN coating increases heat resistance and extends tool life in demanding cuts. Overall length is 3.5 inches with a 1.13-inch length of cut.

This end mill is suited for ferrous and hardened materials in production and job-shop environments. The fine pitch, medium helix style, and extended-reach configuration make it appropriate for profiling, slotting, and chamfering operations in die and mold work, aerospace component machining, and general precision metalworking. The 5/8-inch shank diameter fits standard ER and side-lock toolholders commonly found on CNC vertical and horizontal machining centers. Right-hand cutting direction is compatible with conventional CNC spindle rotation.

Key Features

• 0.02-inch chamfer width for controlled, repeatable corner edge breaks
• Solid carbide construction for rigidity and wear resistance
• TiAlN coating enhances heat resistance and tool longevity in ferrous materials
• 4-flute, right-hand spiral with 30-degree helix for efficient chip evacuation
• Extended reach design allows access to deeper features without tool interference
• Fine pitch geometry supports smooth surface finish on finish-pass operations

Compatibility

Designed as a direct-fit replacement-style solid carbide end mill for CNC machining centers accepting a 5/8-inch straight shank toolholder. Confirm spindle direction and toolholder bore tolerance before installation.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Power down and lock out the spindle drive before loading or removing any cutting tool. Seat the shank fully in the toolholder and verify runout with a dial indicator before production cutting. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material and coating type.