The ACDelco ARW1201 12V 3/8" Ratchet Wrench delivers 57 ft/lbs of maximum torque. The most powerful torque in its class by 60 percent, according to the company. Built for durability and extreme applications. The package includes: two Li-ion 12V battery packs, one quick charger and a carrying case. Features include a forward/reverse lever, durable aluminum gearbox housing, a variable speed switch and anti-slip grip.