Value Collection 720-4108 Square End Mill 5/16 in 4 Flute Hss

Product Description

The VALUE COLLECTION 720-4108 is a double-end, four-flute square end mill designed for general-purpose milling operations in a wide range of shop environments. Manufactured from M2 high speed steel with a bright uncoated finish, it offers reliable performance in ferrous and non-ferrous materials without the added cost of a coated tool. The cutting diameter is 0.3125 inches (5/16 inches), with a length of cut of 0.75 inches, a 3/8-inch shank diameter, and a 3.5-inch overall length. The 30-degree helix angle promotes efficient chip evacuation, and the centercutting geometry allows for direct plunge entry. Both ends are usable, extending tool life between changes.

This end mill suits light to medium-duty milling, slotting, profiling, and peripheral cutting on manual mills and CNC machining centers. The double-end configuration makes it a practical choice for production shops and tool cribs looking to stretch tooling budgets. The right-hand cut and right-hand spiral flute configuration is standard for conventional milling setups. It is sold individually and is appropriate for job shops, maintenance machining, and prototype work where M2 HSS tooling meets the material and speed requirements of the application.

Key Features

• Double-end design provides two usable cutting ends per tool
• M2 high speed steel construction — suitable for steel, aluminum, brass, and plastics
• Centercutting geometry enables direct plunge milling without a pre-drilled entry hole
• 30-degree helix angle promotes smooth chip flow and reduces cutting forces
• Bright uncoated finish — compatible with most cutting fluids and oils
• Right-hand cut, right-hand flute — standard orientation for conventional milling setups

Compatibility

Designed for use in standard 3/8-inch end mill holders, collets, and milling chucks on vertical mills, knee mills, and CNC machining centers. No specific OEM model compatibility is stated by the manufacturer for this part number.

Installation Notes

Installation is performed by machinists and toolroom technicians. Secure the 3/8-inch shank fully into a matched collet or end mill holder and tighten to the machine manufacturer's specified torque before cutting. Confirm spindle direction is set to right-hand rotation before engaging the cut. Inspect both cutting ends for chipping or wear before each use, and never exceed the material and speed ratings appropriate for M2 HSS tooling.