Sgs 39539 Square End Mill 5/16 in 2 Flute Solid Carbide

Product Description

The SGS 39539 is a solid carbide square end mill designed for precision milling in a wide range of materials. It features a 5/16 inch cutting diameter, a 13/16 inch length of cut, and a 2-1/2 inch overall length. The 2-flute, spiral-flute geometry with a 30-degree helix angle promotes efficient chip evacuation and clean cutting action. A TiCN (titanium carbonitride) finish improves surface hardness and wear resistance compared to uncoated carbide. Micrograin carbide construction maintains edge integrity at higher feeds and speeds. This end mill is centercutting, allowing plunge entry into the workpiece without a pre-drilled hole.

This end mill is suited for milling operations across a broad material range, including hardened steels, cast iron, stainless steel, aluminum, non-ferrous metals, and high-temperature alloys, consistent with the workpiece material codes listed for this tool. It is a right-hand cut, right-hand flute tool with a straight-cylindrical shank. Regular-length geometry makes it appropriate for general-purpose profiling, slotting, and contouring operations on CNC machining centers and manual mills.

Key Features

• 5/16 inch cutting diameter with plus 0.000 / minus 0.002 inch diameter tolerance for accurate part dimensions
• Solid micrograin carbide construction for rigidity and edge retention
• TiCN finish increases surface hardness and extends tool life in abrasive materials
• 2-flute, spiral-flute design with 30-degree helix for effective chip removal
• Centercutting capability allows direct plunge milling without a pilot hole
• Right-hand cut and right-hand flute configuration for standard spindle operation

Compatibility

Designed for use in standard straight-shank tool holders accepting a 5/16 inch shank diameter. Suitable for CNC machining centers and manual milling machines configured for right-hand rotation tooling.

Installation Notes

Installation and use of this end mill should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before inserting or removing the tool from the holder. Verify that the tool holder collet or chuck matches the 5/16 inch shank diameter and is torqued to the machine manufacturer's specification. Inspect the cutting edges for chips or wear before each use; carbide tooling is brittle and should not be subjected to impact or excessive runout.