Sgs 31173 Square End Mill 5/64 in 4 Flute Solid Carbide Altin

Product Description

The SGS 31173 is a double-end, four-flute square end mill designed for precision metal removal in CNC machining and manual milling operations. Built from micrograin solid carbide and coated with AlTiN (aluminum titanium nitride), it delivers high hardness and heat resistance at elevated cutting speeds. The stub-length geometry — with a 1/8 inch length of cut and 1-1/2 inch overall length — provides rigidity in tight-clearance applications. A 30-degree helix angle promotes smooth chip evacuation and reduces cutting forces. This tool is installed and operated by machinists and tooling technicians working in production and job-shop environments.

The SGS 31173 is suited for milling ferrous and non-ferrous workpiece materials including hardened steels, stainless steels, cast irons, aluminum alloys, titanium, and high-temperature alloys, consistent with the primary workpiece material codes H, K, M, N, P, and S. The stub length and double-end configuration make it practical for applications requiring short tool overhang, such as slotting, profiling, and shoulder milling in small-envelope fixtures. It is held in a straight-cylindrical shank collet or end mill holder with a 1/8 inch bore.

Key Features

• Micrograin solid carbide construction for wear resistance and dimensional stability
• AlTiN coating extends tool life in high-temperature and abrasive cutting conditions
• Double-end design provides two usable cutting ends, extending service life per tool
• 30-degree right-hand spiral flutes promote efficient chip evacuation
• Stub length geometry improves rigidity and reduces deflection in tight setups
• Center-cutting capable — suitable for plunge entry cuts

Compatibility

Designed for use in CNC machining centers, knee mills, and manual milling machines equipped with collet systems or end mill holders accepting a 1/8 inch straight-cylindrical shank. Compatible with workpiece materials classified under SGS material codes H, K, M, N, P, and S.

Installation Notes

Installation is performed by a machinist or tooling technician. Secure the shank in a collet or end mill holder tightened to the machine tool manufacturer's specification — do not use a drill chuck. Confirm runout is within acceptable tolerance before beginning a cut. Follow shop safety protocols and machine guarding requirements when changing or loading tooling.