Tool Impact Wrench Adapter, 3/8" Drive Female To 1/4" Hex Converter, Quick ?Quick-Change?- Quick-release mechanism allows for easy, one-handed swapping between bits while working, fits tightly both ends, firm grip onto the drill, and holds the bit nicely. ?Square to Hex Adapter?- This impact ratchet chuck adapter converts any hand ratchet, air, or power impact wrench into a drill or ratcheting wrench into a driver or impact screwdriver instantly. ?3/8" to 1/4? Socket Adapter?-This impact hex adapter securely holds any standard screwdriver bits in a 1/4" hex-shank bit (including insert drill bits) to eliminate the need for expensive driver sockets in your tool collection. ?Premium Quality?- Each phillips socket hex chuck adapter is made with a heavy-duty chrome molybdenum steel construction for durability and allows for the ability to withstand the high shock of impact drivers.