Sgs 30521 Square End Mill 11/64 in 3 Flute Solid Carbide

Product Description

The SGS 30521 is a solid carbide square end mill designed for precision material removal in milling operations. It features an 11/64-inch (0.1719 inch) cutting diameter, a 5/8-inch length of cut, and a 3/16-inch straight-cylindrical shank. Overall length is 2 inches. The three-flute, spiral geometry with a 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. Built from micrograin solid carbide, this end mill delivers the rigidity and edge retention required for demanding milling work. It is uncoated and centercutting, making it suitable for both plunge and peripheral cuts. Licensed machinists and tool-and-die professionals are the primary installers.

This end mill is suited for milling applications across a broad range of workpiece materials, including cast iron, hardened steel, stainless steel, aluminum, non-ferrous metals, and heat-resistant alloys, corresponding to material codes H, K, M, N, P, and S. Its regular-length geometry and straight shank fit standard collet and end mill holders in vertical machining centers and manual knee mills. The 11/64-inch diameter makes it a practical choice for slot milling, profiling, and detail work in tight-tolerance parts.

Key Features

• 11/64-inch (0.1719 inch) cutting diameter with a mill diameter tolerance of -0.001/-0.002 inches
• 3/16-inch straight-cylindrical shank with a shank diameter tolerance of +0.00000/-0.00032 inches
• Three spiral flutes with a 30-degree helix angle for efficient chip evacuation
• Centercutting geometry supports direct plunge entry into workpiece material
• Micrograin solid carbide construction for edge retention and rigidity
• Right-hand cut and right-hand flute orientation; uncoated finish

Compatibility

Designed as an OEM-style replacement and standard-fit solid carbide square end mill for use with collet-style and end mill holder tooling systems accepting a 3/16-inch straight shank. Compatible with workpiece material codes H, K, M, N, P, and S as specified by SGS Series 5 tooling.

Installation Notes

Installation is performed by machinists or toolroom professionals. Before changing tooling, power down the spindle and confirm the machine is in a safe, locked state. Secure the shank fully within the collet or holder to the minimum insertion depth recommended by the holder manufacturer. Verify runout after installation before beginning a cut.