Deep well accepts up to 6 IN (152 mm) excess bolt length 7/16 IN hex quick-change adapter included Slim profile for easy use and storage Nut Sizes: 5/8"(3/8" bolt), 3/4"(1/2" bolt), 13/16"(1/2" bolt), 1"(5/8" bolt) Diameter: 1-3/4 IN (45.000 MM) Length With Adapter: 9-1/2 IN (241.000 MM) Length Without Adapter: 7-3/4 IN (197.000 MM) Replacement Part: 49782, Adapter for NR1 Nut Runner Weight With Adapter: 1.500 LB (0.700 KG) Greenlee NR1 Nut Runner Socket With Adapter For 5/8", 3/4", 13/16", 1" Square Nuts NR1