Value Collection 720-4020 Square End Mill 1/4 in 4 Flute Hss

Product Description

The VALUE COLLECTION 720-4020 is a double-end, four-flute square end mill designed for general-purpose milling operations in metal fabrication and machining. Built from M2 high speed steel with a bright/uncoated finish, it delivers consistent performance in a wide range of ferrous and non-ferrous materials. The 1/4 inch diameter cutting end pairs with a 5/8 inch length of cut, giving machinists a compact, rigid geometry suited for slotting, profiling, and peripheral milling. With a 30-degree helix angle and right-hand cutting and flute direction, this end mill produces clean chip evacuation and smooth surface finishes in conventional milling setups.

This end mill is suited for use in manual knee mills, CNC machining centers, and drill press setups where a 3/8 inch shank is accommodated. The double-end configuration extends tool life by providing two usable cutting ends, making it a practical choice for production shops and tool crib restocking. It is appropriate for light-to-medium-duty milling passes in tool steels, aluminum, brass, and similar materials. The regular-length design and fractional inch sizing make it compatible with standard collets and end mill holders used in everyday shop environments.

Key Features

• Double-end design provides two usable cutting ends, extending tool service life
• M2 high speed steel construction offers good toughness and wear resistance for general milling
• 30-degree helix angle promotes efficient chip evacuation and smooth cut finish
• Right-hand cut and right-hand spiral flute direction for use in standard spindle setups
• Bright/uncoated finish suitable for use with cutting fluids on a broad range of workpiece materials
• Four-flute geometry increases feed rate capability compared to two-flute designs in harder materials

Compatibility

Designed as a standard fractional-inch replacement or stock end mill for use in any machine tool equipped with a 3/8 inch collet or end mill holder accepting a 3/8 inch shank diameter.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Ensure the spindle is fully stopped and locked out before changing tooling. Seat the shank fully and evenly in the collet or holder and torque the drawbar or collet nut per the machine manufacturer specification. Inspect the cutting edges for chips or damage before each use, and confirm proper tool runout with a dial indicator when precision work is required.