Osg 455-3753 Square End Mill 3/8 Inch 5 Flute Solid Carbide

Product Description

The OSG 455-3753 is a solid carbide square end mill designed for precision milling operations in metal, composites, and hard materials. It features a 3/8 inch cutting diameter, a 1-1/2 inch length of cut, and a 4 inch overall length with a matching 3/8 inch shank diameter. The 5-flute geometry paired with a 45-degree helix angle promotes efficient chip evacuation and smooth surface finishes at higher feed rates. Manufactured from micrograin carbide, this tool delivers rigidity and wear resistance in demanding cutting environments. Licensed machinists and CNC operators install and run this tool in standard milling machines, machining centers, and CNC routers.

The 455-3753 is suited for slotting, profiling, and peripheral milling applications where tight tolerances and consistent finish quality are required. The centercutting design allows plunge entry directly into the workpiece without a pre-drilled pilot hole. The right-hand cut and right-hand spiral flute configuration is the standard setup for conventional milling machines and the majority of CNC vertical machining centers. This tool is part of OSG Series 455C and is appropriate for use in job shops, aerospace, die and mold, and general metalworking production environments.

Key Features

• 5-flute design increases contact and improves surface finish compared to 4-flute alternatives at equivalent feed rates
• 45-degree helix angle promotes aggressive chip evacuation and reduces cutting forces
• Micrograin solid carbide construction provides hardness and edge retention in ferrous and non-ferrous materials
• Centercutting capability allows direct plunge entry without pre-drilling
• Uncoated finish suits baseline milling applications and allows easy re-sharpening
• Right-hand cut and right-hand flute for compatibility with standard spindle rotation

Compatibility

Part of OSG Series 455C. Fits any spindle or collet accepting a 3/8 inch shank diameter. Designed for use in CNC machining centers, vertical mills, and manual milling machines configured for right-hand rotation.

Installation Notes

Installation is performed by a machinist or CNC operator. Power down the spindle and confirm zero RPM before inserting or removing the tool from the collet or tool holder. Ensure the collet bore and shank are clean and free of chips or debris before seating. Set runout within the tolerance specified for the application — excessive runout accelerates edge wear and reduces dimensional accuracy.