COLD SHOCK™ for J. Walter, Inc. is a fast acting penetrating oil that super-cools bolts to -30'#61616;F causing a cold-cracking action of the rust and corrosion. This cold-cracking process allows a premium blend of penetrating oils to seep deep inside threads to loosen rust allowing the nut or bolt to be removed instantly. COLD SHOCK™ is the ideal product for removing bolts that before now could only be removed by cutting or drilling.