Osg 402-4375 Square End Mill 7/16 Inch 2 Flute Carbide

Product Description

The OSG 402-4375 is a 2-flute solid carbide square end mill designed for precision milling operations in a wide range of metalworking and machining applications. With a 7/16-inch cutting diameter and a 1-inch length of cut, this end mill removes material efficiently in both roughing and finishing passes. The micrograin carbide substrate provides edge retention and resistance to wear at elevated cutting speeds. A 30-degree helix angle promotes smooth chip evacuation and reduces cutting forces. The uncoated finish makes it well suited for general-purpose milling where coating is not required or where regrinding is anticipated.

This end mill is used in CNC machining centers and manual mills for slotting, profiling, and peripheral milling of ferrous and non-ferrous materials. The centercutting design allows it to plunge directly into a workpiece, adding versatility for pocket milling operations. With a right-hand cut and right-hand spiral flute configuration, it is compatible with standard spindle setups. The regular length designation and 2-3/4-inch overall length make it a practical choice for general shop use where minimal overhang is preferred.

Key Features

• Solid micrograin carbide construction for improved hardness and edge life
• 30-degree helix angle promotes efficient chip evacuation and reduces heat buildup
• Centercutting geometry enables direct plunge entry into workpieces
• Right-hand cut with right-hand spiral flute for use in standard spindle configurations
• Uncoated finish suitable for general-purpose milling and regrind applications
• OSG Series 402 regular length design minimizes deflection during cut

Compatibility

Designed as a direct-fit tooling option for standard 7/16-inch collet chucks, end mill holders, and shrink-fit holders used in CNC machining centers and manual knee mills.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power locked out per shop safety procedures. Ensure the shank is clean and the holder bore is free of chips or debris before seating the tool. Verify runout with a dial indicator after clamping, as excessive runout accelerates edge wear and reduces surface finish quality. Follow the machine tool manufacturer and tooling manufacturer recommendations for speeds, feeds, and depth of cut.