Osg 37420004 Square End Mill 0.1969 in 4 Flute Solid Carbide

Product Description

The OSG 37420004 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous materials. With a 0.1969-inch cutting diameter, a 0.7874-inch length of cut, and a 4-flute configuration, this end mill delivers clean square shoulders and flat-bottom features in demanding machining environments. The 30-degree helix angle promotes efficient chip evacuation and reduces cutting forces. The WXL coating provides enhanced wear resistance for extended tool life in production settings. This tool is a single-end, center-cutting design intended for use in CNC machining centers and manual mills operated by machinists and tool-and-die professionals.

This end mill is suited for slot milling, peripheral milling, and profiling operations in shop and production environments. The 0.2362-inch shank diameter fits standard collets and end mill holders common in light to medium-duty machining setups. The micrograin carbide substrate supports high-speed cutting with tight tolerances. Applications include mold and die work, part profiling, and precision contouring in both prototype and production runs.

Key Features

• 0.1969-inch cutting diameter with 0.7874-inch length of cut for small-feature milling
• 4-flute geometry for improved surface finish and material removal rate
• 30-degree helix angle promotes efficient chip flow and reduces heat buildup
• WXL coating delivers enhanced wear resistance and extended tool life
• Micrograin solid carbide construction maintains edge integrity at elevated cutting speeds
• Center-cutting design allows direct plunge entry into workpiece material

Compatibility

Designed as an OEM-style replacement or standard-stock solid carbide square end mill fitting any CNC or manual mill equipped with a collet or end mill holder accepting a 0.2362-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the collet or holder to the recommended engagement depth and torque the retention mechanism per the machine and toolholder manufacturer specifications. Verify runout with a dial indicator before beginning the cut, as excessive runout accelerates edge wear and reduces surface finish quality on small-diameter tools.