Osg 424-0781 Square End Mill 0.0781 in 4 Flute Carbide

Product Description

The OSG 424-0781 is a solid carbide square end mill designed for precision milling operations in metalworking and machining environments. With a 0.0781 inch (5/64 inch) cutting diameter and four right-hand spiral flutes at a 30-degree helix angle, this tool delivers clean, accurate cuts in a compact stub-length profile. The 0.1563 inch length of cut and 0.125 inch shank diameter suit it to close-tolerance slotting, profiling, and peripheral milling. Machined from micrograin carbide, this end mill offers the rigidity and wear resistance needed for demanding production work. It is a double-end design with a bright, uncoated finish and is center-cutting capable.

This end mill fits applications where a small-diameter, short-reach cutting tool is required. Its stub-length overall length of 1.5 inches reduces deflection and supports tighter tolerances in CNC machining centers and manual milling machines alike. It is well suited for cutting ferrous and non-ferrous metals, including aluminum, brass, and steel, in job shop and production settings. The right-hand cut and right-hand flute orientation are standard for conventional vertical milling setups.

Key Features

• 0.0781 inch (5/64 inch) cutting diameter for small-feature milling
• Four right-hand spiral flutes with 30-degree helix angle for efficient chip evacuation
• Solid micrograin carbide construction for rigidity and extended tool life
• Center-cutting design allows plunge entry
• Double-end configuration maximizes tool value
• Bright/uncoated finish suitable for general-purpose machining

Compatibility

Designed as a general-purpose replacement solid carbide square end mill in OSG Series 424 for use in standard 1/8 inch collets or end mill holders on CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the 0.125 inch shank securely in a properly sized collet or end mill holder and torque the retention hardware per the machine manufacturer's specifications. Verify runout with an indicator before beginning cuts to protect the small-diameter cutting edge from premature breakage.