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The SGS 48539 is a solid carbide square end mill designed for precision material removal in CNC machining and manual milling operations. It features a 0.6299 inch (16 mm) cutting diameter with a matching 0.6299 inch straight-cylindrical shank, a 1.2598 inch (32 mm) length of cut, and a 30-degree helix angle. The four-flute geometry is ground from micrograin carbide stock and finished with a TiCN coating to extend tool life in abrasive and hard materials. This is a centercutting, right-hand cut, right-hand flute configuration in SGS Series 1M. It is installed and changed by machinists, toolroom technicians, and CNC setup personnel.
The 48539 is suited for milling ferrous and non-ferrous workpiece materials across multiple material groups including cast irons, non-ferrous metals, stainless steels, high-temperature alloys, and steel. The spiral flute design promotes chip evacuation in slotting, peripheral milling, and plunge operations. Its regular-length profile makes it a general-purpose tool for production and job-shop environments running typical depth-of-cut requirements in the 1.2500 to 1.5000 inch length-of-cut range.
Designed for use with standard straight-bore collet chucks, ER collets, and end mill holders accepting a 0.6299 inch (16 mm) shank diameter. Suitable for workpiece material codes H, K, M, N, P, and S as defined in the supplier specifications.
Installation is performed by a machinist or CNC toolsetter. Ensure the machine spindle is fully stopped and the tool holder is clean and free of chips before seating the shank. Torque the collet nut or set screw to the tool holder manufacturer specification. Confirm runout with a dial indicator before commencing a cut, as excessive runout accelerates TiCN coating wear and reduces tool life.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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