Value Collection 723-3657 Square End Mill 5/32 in Cobalt

Product Description

The VALUE COLLECTION 723-3657 is a single-end, square-profile cobalt end mill designed for metal cutting in milling machines and CNC machining centers. Built from M42 cobalt high-speed steel, it delivers hardness and heat resistance well beyond standard HSS tooling, making it a reliable choice for milling steel, stainless, and other tough ferrous materials. The cutter measures 0.1563 inches (5/32 inch) in diameter with a 0.375-inch length of cut, a 0.25-inch shank diameter, and a 1.5312-inch overall length. A 30-degree helix spiral flute geometry promotes efficient chip evacuation in a right-hand cut, right-hand flute configuration. This is an uncoated (bright finish) tool suited for general-purpose shop work.

This end mill fits standard milling applications where a small-diameter, three-flute geometry is required for slotting, profiling, or light pocketing operations. The long-series length type and centercutting capability allow for plunge entry as well as conventional side milling. It is sold as a single unit and is appropriate for job shops, tool rooms, and maintenance machining environments where fractional-inch tooling in cobalt is specified over carbide for toughness and regrindability.

Key Features

• M42 cobalt construction resists heat and wear during ferrous metal cutting
• Three-flute spiral design balances chip clearance and cutting edge strength at small diameters
• Centercutting geometry allows direct plunge entry without a pre-drilled hole
• Right-hand cut, right-hand flute configuration suits standard milling spindle rotation
• Bright uncoated finish maintains sharp edge geometry and simplifies regrinding
• Long-series length type provides added reach for deeper feature access

Compatibility

Designed as a general-purpose fractional-inch end mill compatible with any milling machine or machining center spindle that accepts a 0.25-inch shank diameter, including standard collet chucks and end mill holders in that bore size.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully and concentrically in a clean, properly sized collet or end mill holder to minimize runout. Verify spindle speed and feed rate against published cobalt HSS cutting data for the workpiece material before beginning the cut.