Shallow Thin Wall Impact Sockets; CRV material, Hardened, Black oxide finished; 1/2″ and 3/8″ Drive , 6 Points; Include: 7 Pcs 3/8″Dr. 30MM-Long Metric: 8, 9, 12, 13, 14, 16 , 17MM; 6 Pcs 3/8″Dr. 30MM-Long SAE : 3/8″, 7/16″ , 1/2″, 9/16″, 11/16″, 3/4″ ; 11 Pcs 1/2″Dr. 37MM-Long Metric : 10, 11, 12, 13, 14, 15, 16, 17, 18, 21, 24MM ; 10 Pcs 1/2″Dr. 77MM-Long SAE : 1/2″, 9/16″, 11/16″, 3/4″ , 13/16″, 7/8″ , 1″, 1-1/16″ , 1-1/8″, 1-1/4″ ; 1 PC— 1/2″ (F)x3/8″(M) Adaptor 1 PC— 3/8″DR.x3″ Extension Bar 1 PC— 1/2″DR.x3″ Extension Bar 1 PC— Plastic Storage Case