Williams 3/8" Drive Deep SAE Socket Set on Clip Rail 6-Point (13 Piece)The Williams 3 8" Drive Deep SAE Socket Set on Clip Rail is a 13 piece collection designed for 3 8 inch drive tools. It features deep well sockets for reaching recessed fasteners and a clip rail for quick access on the jobsite or in the shop. 3 8" Drive: Compatible with standard 3 8 inch drive tools and ratchets. Deep SAE Sockets: Deep well design for reach in recessed fasteners. 6 Point Design: Provides a secure grip on hex fasteners. Clip Rail: Snap