Osg 447-5000 Square End Mill 0.5 in 4 Flute Solid Carbide

Product Description

The OSG 447-5000 is a single-end square end mill machined from solid micrograin carbide, designed for milling operations that demand tight tolerances and clean shoulder cuts. It features a 0.5 inch cutting diameter, a 1 inch length of cut, and a 4-flute spiral geometry with a 30-degree helix angle. The left-hand flute direction paired with a right-hand cutting direction controls chip evacuation and reduces chatter during slotting, profiling, and peripheral milling. This tool is centercutting, allowing plunge entry without a pre-drilled start hole. It is installed by machinists and CNC operators in job shops, production environments, and maintenance machining applications.

The 447-5000 is suited for use in CNC machining centers and manual mills running ferrous and non-ferrous workpiece materials where an uncoated micrograin carbide substrate provides adequate tool life. The regular-length geometry and 0.5 inch shank diameter are compatible with standard ER and end mill holders. The 3 inch overall length keeps overhang minimal, supporting rigidity in close-tolerance finishing and roughing passes at moderate depths of cut up to the full 1 inch length of cut.

Key Features

• Solid micrograin carbide construction for wear resistance and edge retention
• 4-flute spiral design with 30-degree helix angle for efficient chip flow
• Right-hand cut with left-hand flute direction for reduced cutting forces
• Centercutting geometry allows direct plunge milling without pilot drilling
• Uncoated finish suitable for applications where bare carbide is preferred
• Regular-length profile minimizes deflection and maintains rigidity

Compatibility

Designed as a standard-fitment single-end square end mill with a 0.5 inch straight shank, compatible with ER collet chucks, end mill holders, and set-screw tool holders sized for 0.5 inch shank tooling.

Installation Notes

Installation is performed by machinists using appropriate tool holders torqued to machine-tool manufacturer specifications. Ensure the shank is fully seated to the recommended insertion depth before tightening the holder. Confirm spindle runout is within acceptable tolerance prior to cutting, as excessive runout accelerates carbide edge wear. Handle carbide tooling carefully to avoid chipping the cutting edges during setup and storage.