전체 길이 = 90 mm The Teng Tools 1400B series is a 1/4??hex drive reversible bits ratchet. It has overall length of 90mm, making it very compact and easy to keep in the pocket. It also has flip reverse mechanism for quickly changing between tightening and loosening.Chrome vanadium satin finish drop forged steel For use with 1/4??drive hex bits 8mm double hexagon ring spanner on the other end