3/4" Dr. Impact Exension Item No. Size Pack KGS 773-708 3-1/2" 6 3.2 773-709 4' 6 3.4 773-710 6" 6 4.7 773-711 7" 6 5.3 773-712 8" 6 5.9 773-713 10" 3 3.5