Osg 70400516 Square End Mill 0.0938 in 4 Flute Carbide

Product Description

The OSG 70400516 is a solid carbide square end mill designed for precision milling operations in metalworking and machining environments. It measures 0.0938 inches in diameter with a 0.375-inch length of cut, a 0.125-inch shank diameter, and a 1.75-inch overall length. The cutter features four spiral flutes with a 30-degree helix angle and a diamond coating applied over a micrograin carbide substrate. This combination supports efficient chip evacuation and edge retention at small diameters. It is a single-end, right-hand cut tool intended for use by machinists and CNC operators working with tight-tolerance features.

The OSG 70400516 belongs to OSG Series 7040 and is suited for milling slots, pockets, and contours in a range of workpiece materials where a small-diameter, high-rigidity tool is required. The 0.0938-inch cutting diameter makes it appropriate for fine detail work and narrow slot milling. The centercutting geometry allows plunge entry, adding flexibility in CNC machining center applications. Regular-length designation keeps the tool compact for stability at depth.

Key Features

• 0.0938 inches (3/32 inch) cutting diameter for fine-detail and narrow-slot applications
• Solid micrograin carbide construction for rigidity and edge retention at small diameters
• Diamond coating for enhanced wear resistance and surface finish performance
• Four spiral flutes at 30-degree helix angle for effective chip evacuation
• Centercutting geometry allows direct plunge entry without pre-drilling
• Right-hand cut and right-hand flute configuration; single-end design

Compatibility

Designed as an OEM-style replacement or production cutting tool for CNC machining centers and manual mills accepting a 0.125-inch (1/8 inch) straight shank. Part of OSG Series 7040.

Installation Notes

Installation and use should be performed by qualified machinists or CNC operators. Secure the 0.125-inch shank in a properly sized collet or end mill holder and verify runout before cutting. Ensure the spindle is fully stopped and the machine is in a safe state before loading or changing tooling. Do not exceed the tool manufacturer's recommended speeds and feeds for the cutting diameter and workpiece material.