Value Collection 720-3403 Square End Mill 5/16 in 4 Flute Hss

Product Description

The VALUE COLLECTION 720-3403 is a single-end, 4-flute square end mill designed for general-purpose milling in a wide range of ferrous and non-ferrous materials. Manufactured from M2 high speed steel with a bright uncoated finish, it offers a 5/16 inch cutting diameter and a 2 inch length of cut, making it well suited for slotting, profiling, and peripheral milling operations. The 30-degree right-hand spiral flute geometry promotes efficient chip evacuation and smooth cutting action. At 3.75 inches overall length, this tool falls in the extra-long category, providing additional reach for deeper workpiece features. It is center-cutting and runs in a right-hand cutting direction.

This end mill is intended for use in CNC machining centers, knee mills, and manual milling machines where a fractional-inch, straight-shank toolholder is used. The 3/8 inch shank diameter fits standard ER collets and end mill holders commonly found in production and job-shop environments. Its extra-long overall length makes it particularly useful when access to recessed features or deep pockets is required. Machinists and tool-and-die professionals working in steel, aluminum, and similar materials will find this a practical general-purpose choice for everyday milling tasks.

Key Features

• M2 high speed steel construction for durability across a broad range of workpiece materials
• 4-flute, right-hand spiral flute design promotes efficient chip removal and surface finish
• 30-degree helix angle balances cutting forces and tool stability
• Center-cutting capability allows plunge entry into the workpiece
• Bright uncoated finish suitable for general-purpose applications without coating-related dimensional concerns
• Extra-long overall length at 3.75 inches provides reach for deep-feature milling

Compatibility

Designed for use with standard 3/8 inch straight-shank ER collet chucks and end mill holders on CNC and manual milling machines accepting fractional-inch tooling.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for toolholder torque and runout specifications. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the holder. Verify collet or holder condition before use, as worn toolholding components can increase runout and reduce tool life. Observe appropriate cutting speeds and feeds for M2 HSS tooling based on workpiece material and machine rigidity.