Value Collection 720-3401 Square End Mill 1/4 in 4 Flute Hss

Product Description

The VALUE COLLECTION 720-3401 is a single-end, square-profile end mill designed for general-purpose milling operations in ferrous and non-ferrous materials. Built from M2 high speed steel with a bright uncoated finish, this tool delivers reliable performance in conventional milling setups. The 1/4 inch cutting diameter pairs with a 3/8 inch shank, providing a stable connection in standard collet or end mill holders. With a 1-3/4 inch length of cut and a 3-1/2 inch overall length, this is an extra-long configuration suited for applications requiring extended reach into workpieces or fixtures.

This end mill is appropriate for use in vertical machining centers, knee mills, and manual milling machines across job shop, maintenance, and light production environments. The 30-degree helix angle and four-flute spiral geometry support smooth chip evacuation and surface finish on steel, aluminum, and similar materials. It is installed and operated by machinists and tool-and-die professionals working with fractional inch tooling systems. No coolant-through capability is present, so external coolant or flood cooling applies when required by the material or cut depth.

Key Features

• M2 high speed steel construction for durability across a range of workpiece materials
• Four-flute spiral geometry with 30-degree helix angle for improved chip flow and finish
• Centercutting design allows plunge entry directly into the workpiece
• Right-hand cut and right-hand flute orientation — standard configuration for most milling setups
• Extra-long length type with 1-3/4 inch length of cut for extended reach applications
• Bright uncoated finish — no coating buildup concerns when regrinding or inspecting edge condition

Compatibility

Designed as an OEM-style replacement or direct-use tool for milling machines accepting a 3/8 inch shank end mill in standard collet chucks or end mill holders using fractional inch tooling.

Installation Notes

Installation is performed by a qualified machinist. Secure the 3/8 inch shank fully into a compatible collet or end mill holder, ensuring the shank is clean and free of burrs before tightening. Verify spindle runout is within acceptable limits before beginning a cut, as excessive runout accelerates edge wear on HSS tooling. Always bring the spindle to a full stop before changing or inspecting the tool.