Value Collection 723-1439 Ball End Mill 1-1/4 in Cobalt

Product Description

The VALUE COLLECTION 723-1439 is a single-end cobalt ball end mill designed for milling curved surfaces, contoured profiles, and three-dimensional shapes in metalworking applications. Built from M42 cobalt high-speed steel, this tool offers improved heat and wear resistance compared to standard HSS end mills, making it well suited for harder workpiece materials and higher cutting speeds. It features a 1.25-inch mill diameter, a 2.5-inch length of cut, and a 5-inch overall length. The bright, uncoated finish is standard for cobalt tooling and works effectively across a range of general-purpose milling operations. Machinists and tool-and-die professionals are the primary users of this end mill.

This end mill is intended for use in CNC machining centers, knee mills, and manual vertical mills where ball-nose geometry is required to produce radius floors, ramp cuts, and sculpted contours. The 2-flute configuration provides adequate chip clearance when cutting softer steels, aluminum alloys, and similar materials. The 1.25-inch shank diameter matches the mill diameter, allowing direct clamping in standard ER or side-lock tool holders of the appropriate bore. Right-hand cutting and right-hand spiral flute direction are standard for conventional and climb milling on typical setups.

Key Features

• M42 cobalt construction for improved heat resistance and tool life over standard HSS
• 1.25-inch mill diameter with matching 1.25-inch shank diameter for direct holder fitment
• 2.5-inch length of cut accommodates deeper cavity and profile work
• 2-flute spiral geometry promotes chip evacuation in slotting and profiling passes
• Right-hand cut and right-hand flute direction for standard spindle operation
• Bright uncoated finish — no coating degradation concern when re-sharpening

Compatibility

Designed as an OEM-style replacement or direct-use cobalt ball end mill for machining centers and manual mills accepting a 1.25-inch shank diameter end mill holder.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the tool holder and torque the retention hardware per the holder manufacturer specification. Verify runout with a dial indicator before cutting to protect both the tool and the workpiece.