" Metric and Imperial sizes in this 3/8in. drive and ½in. drive Impact Socket Set includes: 2 extension bars ½in. (F)> 3/8in. (M) adaptor 11 x Metric Sockets in ½in. drive (9mm to 30mm) 11 x Imperial Sockets (7/16in. to 1 ¼in.) 7 x Metric S…View more