Osg 37420012 Square End Mill 0.3543 in 4 Flute Carbide

Product Description

The OSG 37420012 is a solid carbide, four-flute square end mill designed for precise milling operations in metalworking and machining applications. With a 0.3543 inch cutting diameter and a 1.1024 inch length of cut, this tool delivers reliable material removal in slots, pockets, and peripheral milling passes. The 0.3937 inch shank diameter provides a secure grip in standard tool holders. A 30-degree helix angle and micrograin carbide substrate combine to produce smooth chip evacuation and a long tool life. The WXL coating enhances wear resistance and thermal protection during high-speed cutting cycles. This end mill is center-cutting and right-hand cut with right-hand flute direction.

This end mill suits CNC machining centers and manual mills in job shop, tool and die, and general precision machining environments. It is appropriate for cutting ferrous and non-ferrous metals where a fine surface finish and dimensional accuracy are required. The single-end configuration makes it a direct replacement when the tool is worn or broken during production runs. Machinists and CNC operators working in aerospace, automotive, and general manufacturing will find this a capable everyday tool for medium-depth milling operations.

Key Features

• Micrograin solid carbide construction for rigidity and extended tool life
• WXL coating provides wear and heat resistance during high-speed cuts
• 30-degree helix angle promotes efficient chip evacuation and reduced cutting forces
• Center-cutting capability allows direct plunge entry into the workpiece
• Right-hand cut and right-hand flute direction for standard spindle rotation
• Four flutes deliver a balance of chip clearance and surface finish quality

Compatibility

Designed as an OEM-style replacement square end mill compatible with standard tool holders accepting a 0.3937 inch shank diameter in CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the end mill. Use a properly sized collet or end mill holder rated for the 0.3937 inch shank and torque the retention nut according to the tool holder manufacturer specifications. Verify runout with a dial indicator before beginning the cut.