Osg VG441-3126 Square End Mill 5/16 in 4 Flute Carbide

Product Description

The OSG VG441-3126 is a square end mill designed for precision metal removal in milling operations across a wide range of materials. Built from solid carbide micrograin substrate and finished with a TiAlN coating, this tool delivers extended tool life and heat resistance in demanding cutting environments. The 5/16-inch diameter body features 4 spiral flutes at a 35-degree helix angle and a variable index design that reduces harmonic vibration during cutting. The centercutting geometry allows for both plunging and side milling. HVAC fabricators, metalworking shops, and tool-and-die professionals install this end mill using standard CNC machining centers or manual knee mills.

This end mill suits general-purpose and precision milling applications in ferrous and non-ferrous materials. The TiAlN coating makes it particularly effective in high-temperature dry or semi-dry cutting conditions where lubrication is limited or undesirable. The 1-1/4-inch length of cut and 5/16-inch shank diameter fit standard collets and toolholders commonly used in production machining and job shop environments. It is well suited for slot milling, peripheral milling, and light plunge cuts in steel, stainless, and hardened alloys.

Key Features

• Solid carbide micrograin construction for rigidity and wear resistance
• TiAlN finish for elevated heat resistance and longer tool life in dry cutting
• 4 spiral flutes with 35-degree helix angle for efficient chip evacuation
• Variable index flute spacing to reduce chatter and harmonic vibration
• Centercutting design allows plunge entry and full-slot milling
• Right-hand cut and right-hand flute for standard CNC and manual mill spindles

Compatibility

Designed as an OEM-series replacement and general-use tool within the OSG VG441 series, compatible with standard 5/16-inch collets and toolholders on CNC machining centers and manual milling machines.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the spindle is fully stopped and the machine is powered off before changing tooling. Seat the 5/16-inch shank fully into the collet or toolholder and torque the retention nut to the collet manufacturer specification. Verify runout with a dial indicator before beginning a production cut to protect both the tool and the workpiece.