Value Collection 723-1666 Square End Mill 11/64 in 2 Flute Cobalt

Product Description

The VALUE COLLECTION 723-1666 is a cobalt square end mill designed for precision milling in ferrous and high-temperature materials. Built from M42 cobalt high-speed steel, it delivers heat resistance and edge retention that standard HSS tooling cannot match. The double-end configuration gives machinists two usable cutting ends, extending tool life and reducing per-job tooling cost. With a 30-degree helix angle and spiral flute geometry, it clears chips efficiently during slotting, profiling, and plunging operations. This is a center-cutting tool, meaning it can plunge directly into the workpiece without a pilot hole. Sold individually.

This end mill is suited for milling steel, stainless steel, cast iron, and high-temperature alloys in a wide range of machining environments. The long series overall length of 3.25 inches provides additional reach for deeper pockets and stepped features without requiring an extended-reach holder. The 3/16-inch shank fits standard collets and end mill holders commonly used on knee mills, CNC machining centers, and manual vertical mills in job shop and production settings.

Key Features

• M42 cobalt construction for heat resistance in tough ferrous and high-temp alloy cuts
• Double-end design provides two cutting ends per tool
• Center-cutting geometry allows direct plunge entry
• 30-degree helix angle promotes efficient chip evacuation
• Bright uncoated finish suits applications where coating interaction with workpiece material is a concern
• Long series length accommodates deeper reach requirements

Compatibility

Designed for use with standard 3/16-inch collets and end mill holders on knee mills, CNC vertical machining centers, and manual milling machines. Primary workpiece materials include steel, stainless steel, cast iron, and high-temperature alloys.

Installation Notes

Installation should be performed by a qualified machinist following shop-standard toolholding procedures. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully into the collet or holder to the manufacturer-recommended engagement depth and torque the retention nut per the toolholder specification. Verify runout with a dial indicator before initiating a cut, particularly for tight-tolerance work.