Features and Benefits: 3/8 in. drive pro-ratchet included; 2 and 6 inch extensions included; Packaged in a blow molded storage case; Popular assortment at the right price; The 47-piece 3/8″ drive set, available in six points, includes sizes 1/4″ -7/8″ (standard length fractional), 3/8″ -7/8″ (deep fractional), 6mm-19mm (standard length metric) and 10mm-19mm (deep metric);