Sealey Female to Male Impact Adaptors - Sealey AK5405, Drop-forged Chrome Molybdenum steel adaptor. Suitable for use on all types of air impact tool. Phosphate finish for added corrosion resistance.Model NoAK5405Drive:1"Sq(F) x 3/4"Sq(M)Length:70mmMaterial:CrMNett Weight:0.55Kg Sealey AK5405 Impact Adaptor 1"sq Drive Female - 3/4"sq Drive Male