Kobalt 14-Piece Direct Drive Ratchet St 0607975 The gearless Direct Drive ratchet is perfect for driving fasteners in knuckle-busting places The gearless roller bearing drive grabs onto a fastener with the smallest movement - allowing you to Multi-fit sockets feature a specialized drive that works on both SAE and MM fasteners Includes a 3/8-in to 1/4-in drive adapter