Value Collection 723-3924 Square End Mill 1-1/8 in 6 Flute Cobalt

Product Description

The VALUE COLLECTION 723-3924 is a cobalt square end mill designed for milling operations that demand heat resistance and toughness beyond standard high-speed steel tooling. Built from M42 cobalt steel, this single-end cutter features a 1.125-inch mill diameter, six spiral flutes with a 30-degree helix angle, and a bright uncoated finish. It is center-cutting, allowing plunge cuts as well as conventional peripheral milling. Right-hand cut and right-hand flute geometry make it compatible with standard CNC machining centers and manual knee mills running conventional spindle rotation.

This end mill fits residential and commercial machine shop environments, toolrooms, and production floor applications where ferrous and non-ferrous materials are being profiled, slotted, or face-milled. The 1.5-inch length of cut and 3.875-inch overall length suit medium-depth pocketing and shoulder milling operations. The 0.75-inch shank diameter fits standard R8, CAT, BT, and ER collet toolholding systems commonly used in vertical machining centers and manual mills.

Key Features

• M42 cobalt construction provides elevated red hardness for cutting harder steels and stainless alloys
• Six flutes deliver higher feed rates and improved surface finish compared to four-flute designs
• 30-degree helix angle balances chip evacuation and cutting force across the flute length
• Center-cutting geometry allows direct plunge entry without pre-drilling
• Bright uncoated finish is suitable for re-sharpening and works well with cutting fluid
• Right-hand cut and right-hand flute for standard spindle rotation setups

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for vertical machining centers and manual mills accepting a 0.75-inch shank diameter in standard collet or set-screw toolholders.

Installation Notes

Installation is performed by machinists or toolroom technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank to the full recommended engagement depth in the collet or holder and torque the drawbar or collet nut to the toolholder specification. Inspect the flutes and shank for damage before each use, and apply cutting fluid appropriate to the workpiece material to extend tool life.