mks777HV777A+ Aluminum upper Casing (0.1 sec60° - 40.40 kg.cm (561.1 ozin) @8.2V).HV777A+ $145.00 Torque (6.0V): 29.5 kg-cm 409.7 oz-in Torque (7.4V): 36.5 kg-cm 506.9 oz