Brown & Sharpe TESA 01639007 UJ15 INTERAPID Small Magnetic Support, 8mm Diameter Clamping Bore, Dovetail Clamp Tesa design swiss made Rounded base with permanent magnet Holding force on a flat surface: 220 N for UJ 15, &gt;= 350 N for UJ 15G Included in scope of supply: supplied without indicator Comes in suited carrying case