... bar 2x extension bars: 100mm (4") and 200mm (8") 17x 3/4" drive (6pt) socket sizes: ... 19, 21, 22, 23, 24, 26, 27, 30, 32, 34, 36, 38, 41, 46, 48 and ... company,integrating research, development, manufacture and trade as a whole.We specialize ... and high standards, establishing favorable and long-term cooperative relationships with many customers.Welcome to your inquiry! 21pc 3/4 ...