Manual Soil Vapor Probe with Slide Hammer was designed to extract vapor samples around underground fuel tanks or any container that holds a volatile liquid that could potentially contaminate the soil if a leak occured. The probe tip makes a 5/8″ diameter hole and the extensions are 1/2″ in diameter. The kits includes the 10″ cross handle, 10 lb slide hammer, tile probe base, two 3′ tile probe extensions, barbed adapter, adapter for hammer, and internal rod.