1/4" drive Pro-ratchet included2" and 6" extension 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).