Value Collection 723-3303 Square End Mill 5/16 in 4 Flute Cobalt

Product Description

The VALUE COLLECTION 723-3303 is a cobalt square end mill built for general-purpose milling in ferrous and non-ferrous materials. Ground from M42 cobalt high-speed steel, it delivers better heat resistance than standard M2 HSS, making it suitable for harder workpiece materials and interrupted cuts. The cutter measures 0.3125 inches in diameter with a 1.375-inch length of cut, a 0.375-inch shank diameter, and a 3.125-inch overall length. Four spiral flutes with a 30-degree helix angle provide efficient chip evacuation and a smooth cutting action. This is a centercutting tool, allowing direct plunge entry into the workpiece without a pre-drilled hole.

This end mill is intended for use in manual knee mills, CNC machining centers, and drill press setups where a long-series cobalt tool is required. It is suited for slot milling, profile milling, and plunge operations in steel, stainless steel, cast iron, and similar materials. The long series designation makes it appropriate for applications requiring extended reach beyond a standard-length cutter. It is sold as a single-end tool with a bright, uncoated finish, and is part of the VCCC-C-4 series of fractional-inch cobalt end mills.

Key Features

• M42 cobalt HSS construction for improved heat and wear resistance over standard HSS
• 4-flute spiral design with 30-degree helix angle for efficient chip evacuation
• Centercutting geometry allows direct plunge milling without a pilot hole
• Long series length type provides extended reach for deep-pocket operations
• Right-hand cut and right-hand flute for standard spindle rotation
• Bright/uncoated finish suitable for use with cutting fluids on a wide range of materials

Compatibility

Designed as a standard fractional-inch shank end mill compatible with 3/8-inch collets and end mill holders used in manual and CNC milling machines.

Installation Notes

Installation should be performed by a qualified machinist. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the shank. Use a properly sized collet or end mill holder to achieve full shank engagement and minimize runout. Verify spindle speed and feed rate are set to values appropriate for the workpiece material and cutter diameter before beginning the cut.