Value Collection 724-4122 End Mill 1/2 in 4 Flute Cobalt

Product Description

The VALUE COLLECTION 724-4122 is a cobalt roughing finishing end mill designed for aggressive material removal and semifinishing passes in a single tool. Built from M42 cobalt high-speed steel, it delivers superior heat and wear resistance compared to standard HSS tooling. The 1/2 inch diameter, 4-flute, right-hand cutting geometry with a 30-degree helix angle provides efficient chip evacuation while maintaining a clean finish on the workpiece. With a 2 inch length of cut and 4 inch overall length, this single-end mill suits a wide range of milling operations on ferrous and non-ferrous materials. The bright uncoated finish is compatible with most cutting fluids.

This end mill is suited for use in vertical milling machines, CNC machining centers, and manual knee mills. The 1/2 inch Weldon flat shank provides positive drive and resists pullout in demanding cuts. It is a practical choice for machinists, tool and die shops, and maintenance machining operations requiring a combination roughing and finishing tool in one pass. The square end geometry allows for shoulder milling, slotting, and peripheral milling applications.

Key Features

• M42 cobalt construction for improved heat resistance and tool life over standard HSS
• 4-flute, right-hand cut with 30-degree helix for efficient chip removal and surface finish
• 1/2 inch Weldon flat shank for positive drive and pullout resistance
• Bright uncoated finish compatible with water-soluble and oil-based cutting fluids
• Single-end design with square end geometry for shoulder, slot, and peripheral milling
• Not centercutting — not intended for direct plunge operations

Compatibility

Designed as a direct-fit replacement or standard tooling selection for 1/2 inch collet or end mill holders with Weldon flat drive capability on vertical mills and CNC machining centers.

Installation Notes

Installation should be performed by a qualified machinist. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the Weldon flat shank firmly in the end mill holder using the appropriate set screw to prevent pullout during cutting. Confirm runout with a dial indicator before beginning a production run, especially when tight tolerances are required.