Osg 4510700 Square End Mill 1 in Cobalt 5 Flute

Product Description

The OSG 4510700 is a single-end, square-profile cobalt end mill designed for milling operations in ferrous and hard materials. It features a 1-inch cutting diameter, a 3-inch length of cut (LOC), and a 1-inch shank diameter, making it a heavy-duty tool suited for full-slot and peripheral milling applications. The 5-flute configuration increases the number of cutting edges over standard 4-flute designs, which improves feed rates and surface finish in finish and semi-finish passes. Overall length is 5.5 inches. The 30-degree helix angle promotes smooth chip evacuation and reduces cutting forces. This tool is uncoated cobalt construction and is intended for use by machinists and toolroom professionals.

This end mill is used in vertical and horizontal milling machines, VMCs, and manual knee mills where a full 1-inch diameter cut is required. The fine-pitch flute spacing and right-hand cut with right-hand flute orientation make it appropriate for conventional and climb milling in steel, stainless steel, cast iron, and similar materials. The regular-length geometry suits standard fixturing without requiring extended-reach toolholders. It is a single-end tool, so it is replaced rather than re-indexed when worn.

Key Features

• 5-flute design supports higher feed rates and improved surface finish versus 4-flute end mills
• Cobalt construction provides heat resistance for cutting ferrous and hard alloy materials
• 30-degree helix angle aids chip evacuation and reduces axial cutting forces
• Right-hand cut, right-hand flute orientation for standard milling spindle use
• Uncoated finish — suitable for re-sharpening by a qualified tool grinding service
• 1-inch shank diameter compatible with standard ER, Weldon, and shrink-fit toolholders sized for 1-inch shanks

Compatibility

Designed as an OEM-style replacement or direct-use cutting tool for milling applications requiring a 1-inch diameter square end mill with a 1-inch shank. Fits standard toolholders and collet chucks designed for 1-inch shank end mills.

Installation Notes

Installation of this end mill should be performed by a qualified machinist following the toolholder manufacturer's clamping specifications. Ensure the machine spindle is fully stopped and locked out before changing tooling. Confirm shank engagement depth meets the toolholder minimum insertion requirement before tightening. Inspect the cutting edges and shank for damage before each use.