4 mm 76.2mm Carbide Extended Stainless Steel Ball Probe (1 1/4″ thread) for USB Arms
4 mm 76.2mm Carbide Extended Stainless Steel Ball Probe (1 1/4″ thread) for USB Arms
4 mm 76.2mm Carbide Extended Stainless Steel Ball Probe (1 1/4" thread) for USB Arms