Standard SAE: 3/16" - 9/16". Standard metric: 4mm - 15mm. Deep SAE: 3/16" - 9/16". Deep metric: 4mm - 15mm.
Universal SAE: 1/4" - 9/16". Universal metric: 5mm - 15mm. Extension bars: 2", 4", 6".
Impact adapter: 1/4" F x 3/8" M. 1/4 Drive 6 Point SAE/Metric, Standard, Deep & Universal Impact Socke.