Spent two-headed wrench is a versatile tool, hand tools or spare parts for the assembly and transportation tools, agricultural machinery maintenance required. Headed wrench made of high quality carbon tool manufacturing, forging a molding, advanced technology and quality assurance. Spent two-headed wrench using bronze, made of aluminum bronze alloy. Specifications and six sets of 8 sets, 11 sets, 13 sets. 6 kit installed: 5.5 * 7,8 * 10, 12 * 14, 14 * 17, 17 * 19, 22 * ??24; 8 kit installed: 5.5 * 7,8 * 10,10 * 12, 12 * 14, 14 * 17, 17 * 19, 22 * ??24, 24 * 27; 11 kit installed: 8 * 10,9 * 11, 10 * 12, 12 * 14, 14 * 17, 17 * 19, 19 * 22, 22 * 24, 24 * 27, 27 * 30, 30 * 32; 13 kit installed: 5.5 * 7,6 * 7,8 * 10,9 * 11, 10 * 12, 12 * 14, 14 * 17, 17 * 19, 19 * 22, 22 * ??24, 24 * 27, 27 * 30, 30 * 32