6mm 38.1mm Carbide Extended Stainless Steel Ball Probe (1 1/4″ thread) for USB Arms
6 mm 38x1MM Carbide Extended Stainless Steel Ball Probe (1 1/4″ thread) for USB Arms
6 mm 38x1MM Carbide Extended Stainless Steel Ball Probe (1 1/4" thread) for USB Arms