Snap-on Tools USA NEW 7 Piece. 1/4″ & 3/8″ Drive Adaptor & Swivel Socket Set. TA3 = 1/4″ to 3/8″ Adaptor. TMU8B = 1/4″ to 1/4″ Chrome Swivel. IPM800B = 1/4″ to 1/4″ Impact Swivel. FX1 = 3/8″ to 3/8″ Extension (1-1/2 Length). 3/8″ to 1/2″ Adaptor. FU8A = 3/8″ to 3/8″ Chrome Swivel. IPF800B = 3/8″ to 3/8″ Impact Swivel.