Osg 70400716 Square End Mill 1/8 in 4 Flute Solid Carbide

Product Description

The OSG 70400716 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 1/8 inch cutting diameter, a 1/2 inch length of cut, and a 4-flute spiral design with a 30-degree helix angle. The diamond finish coating and micrograin carbide substrate provide edge retention and surface finish quality in demanding cutting conditions. This is a centercutting, right-hand cut, right-hand flute tool from OSG Series 7040, suited for slotting, profiling, and plunge operations on CNC mills and manual milling machines.

This end mill is used in precision machining environments including tool and die, mold making, aerospace component work, and general metalworking. The 1/8 inch shank diameter matches the cutting diameter, and the 1-3/4 inch overall length (OAL) keeps the tool compact for rigid setups. The regular length designation suits standard reach applications where extended reach is not required. It is typically installed and operated by machinists and CNC programmers working with ferrous and non-ferrous materials.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• Diamond finish surface treatment for improved chip flow and edge life
• 4-flute spiral design with 30-degree helix angle for balanced cutting action
• Centercutting capable — supports plunge and ramp entry cuts
• Right-hand cut and right-hand flute geometry for standard spindle rotation
• Mill diameter tolerance of +0.000 / -0.002 inches for close-tolerance work

Compatibility

Designed as an OEM-style precision cutting tool for use in standard 1/8 inch collets or end mill holders on CNC machining centers and conventional milling machines.

Installation Notes

Installation is performed by qualified machinists using an appropriate collet or end mill holder rated for the 1/8 inch shank diameter. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Verify runout with a dial indicator after seating to confirm proper concentricity. Follow shop-standard speeds and feeds for the workpiece material and consult the tooling manufacturer data sheet for recommended cutting parameters.