SOCKET WRENCH SET WITH ACCESSORIES; MOUTH TYPE: DOUBLE HEXAGONAL; END MEASUREMENT (MM/PLG): INCHES; ENTRY MEASUREMENT: 1/2 IN; MINIMUM SIZE: 1/4 IN; MAXIMUM SIZE: 1 IN; NUMBER OF KEYS: 14; NUMBER OF PIECES: 21; NOTE: NO HOBBISTIAL LINES OF TOOLS WILL BE ACCEPTED, ONLY INDUSTRIAL OR PROFESSIONAL. OTHER APPROVED BRANDS: GEDORE; MANUFACTURER 1: PROTO; MANUFACTURER 2: BAHCO; MANUFACTURER 3: STANLEY; MOD ELO 3: PROFESSIONAL