Value Collection 724-3143 Roughing End Mill 5/8 in Cobalt

Product Description

The VALUE COLLECTION 724-3143 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel with a TiN (titanium nitride) coating, it handles tough ferrous materials while maintaining edge life under heat. The mill measures 0.625 inches in diameter with a 1.25-inch length of cut and a 3.375-inch overall length. It features 4 flutes with a right-hand cutting and right-hand flute direction. This tool is used by machinists and tool-and-die professionals on manual mills and CNC machining centers where roughing passes demand durability and chip clearance.

This roughing end mill suits roughing and semi-finishing passes in ferrous metals including alloy steels and stainless steels. The coarse tooth geometry breaks cuts into smaller chips, reducing heat buildup and tool deflection compared to standard end mills. The 5/8-inch shank matches directly to standard ER collets, side-lock holders, and Weldon-style tool holders used in vertical machining centers and knee mills. It is a single-end configuration, so the tool is replaced rather than flipped when the cutting edge is worn.

Key Features

• M42 cobalt HSS construction for heat and wear resistance in tough ferrous materials
• TiN coating extends tool life and reduces friction at the cutting edge
• 4-flute roughing geometry promotes aggressive chip evacuation on heavy cuts
• Right-hand cut and right-hand helix — standard configuration for conventional and climb milling
• Non-center-cutting design — requires a pre-drilled hole or plunge entry not recommended
• Matched shank and cutter diameter at 0.625 inches simplifies toolholder selection

Compatibility

Designed as a standard-shank roughing end mill compatible with 5/8-inch ER collet chucks, Weldon side-lock holders, and similar 5/8-inch bore toolholding systems used on vertical machining centers and manual knee mills.

Installation Notes

Installation is performed by a machinist or toolroom technician. Power down and lock out the spindle before seating or removing the tool from the holder. Verify the shank is fully seated to the minimum insertion depth specified by the toolholder manufacturer before torquing the retention screw or collet nut. Because this mill is not center-cutting, do not attempt direct plunge entry into solid material — use a pre-drilled starting hole or ramp entry.