Titan 12087 6-Piece Impact Socket Adapter Set Impact grade socket adapters to allow the use of sockets with power drills and impact drivers (2) 1/4" drive adapters: 2-1/2" and 6" lengths (2) 3/8" drive adapters: 2-1/2" and 6" lengths (2) 1/2" drive adapters: 2-3/4" and 6" lengths Each adapter features a detent ball for secure socket retention