Snap On 16pc 1/2″ Drive Shallow SAE 6pt Impact Socket Set 9/16″-1-1/2 IM Series. Nice set of Snap-On impact sockets. There are 14 of the IM series from 9/16″ – 1 1/2″. There is also a deep socket 1 1/4″ (SIM400) and a 2 3/4″ extension. All are in good condition with signs of use as shown in photos. Please see our other Snap-On listings.