21-Piece T-Handle Screwdriver Set Ratcheting T-handle (1) Adaptor Multi-position extension bar (9) Sockets: 3/16in, 7/32in, 1/4in, 5/16in, 11/32in, 3/8in, 7/16in, 15/32in, 1/2in (9) 1 in Bits: SL1/8in, SL5/32in, SL3/16in, SL1/4in, PH1, PH2, PH3, SQ1, SQ2