Craftsman 37 pc. Build A Tool 3/8" Drive Impact Socket Set

37-piece impact socket set6 points of contact3/8" driveBlack oxide finish protects against corrosion9 metric impact sockets in sizes 10mm-18mm8 inch deep impact sockets in sizes 5/16"-3/4"8 metric deep well impact sockets in sizes 12mm-19mmImpact universal joint2 impact extension bars in 3" and 6" to deliver increased reachRugged steel build and hardening delivers superior wear life