The 21pcs counts the carrying case in. (Includes 19mm, 21mm, 22mm, 23mm, 24mm, 26mm, 27mm, 29mm, 30mm,32mm, 34mm, 36mm, 38mm, 41mm, 46mm, 50mm). Type: 3/4" Deep Impact Socket Set. 9PCs 1/2" Drive Axle Nut Hub Air Impact Socket Set 29 30 31 32 33 34 35 36 38mm.
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