Value Collection 720-4338 Square End Mill 5/64 in 4 Flute Hss

Product Description

The VALUE COLLECTION 720-4338 is a double-end, 4-flute square end mill designed for general-purpose milling in high speed steel (HSS) grade M2. It features a 5/64 inch (0.0781 inch) cutting diameter and a 1/4 inch length of cut, making it well suited for slotting, profiling, and peripheral milling in small-envelope applications. The 30-degree spiral helix angle promotes efficient chip evacuation, while the bright, uncoated finish is appropriate for use in softer steels, aluminum, and non-ferrous materials. Machinists and tool-and-die professionals working on manual mills or CNC machining centers will find this tool practical for detail work requiring a small-diameter cutter.

This end mill is intended for light to medium material removal in production and maintenance machining environments. The double-end configuration provides two usable cutting ends, extending tool life between changes. With a 3/16 inch shank diameter and a 2-1/2 inch overall length, it fits standard collets and end mill holders commonly found in vertical mills and CNC machining centers. The long-length classification offers additional reach for pocketing and contouring operations where a standard-length tool would not clear the workpiece walls.

Key Features

• Double-end design provides two cutting ends per tool, reducing per-cut tooling cost
• M2 high speed steel construction offers good toughness and wear resistance in general-purpose applications
• 30-degree helix angle promotes chip flow and reduces cutting forces
• Center-cutting geometry allows plunge entry directly into the workpiece
• Bright, uncoated finish suits aluminum, brass, and softer ferrous materials
• Right-hand cut and right-hand flute direction for standard spindle rotation

Compatibility

Designed as an OEM-style replacement or standard tooling option for vertical mills and CNC machining centers using 3/16 inch collets or end mill holders that accept a 3/16 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist with the machine spindle fully stopped and locked out per OSHA lockout/tagout procedures. The shank should be fully seated in the collet or holder to the recommended engagement depth before tightening. Verify runout with a dial indicator before beginning cuts to prevent premature edge wear or tool breakage. Do not exceed the tool's rated depth of cut for the material being machined.