Use with 1" square drive impact wrench Metric sizes for Isuzu, Hino, Mitsubishi, Fuso, White Volvo, Mack Midliner and other imports Fractional size for all U.S.A. made trucks Fits both front and rear axle wheel, single and dual Packaged in a blow molded case for easy transport Removes both nut and stud with just one socket. Set includes 33mm, 36mm, 38mm, 41mm and 1-1/2" hex.