M18 FUEL 1/2" Ext Anvil HTIW w ONE KEY Bare Tool. The M18 FUEL™ ½” Ext. Users can perform faster tire service without the hassle of pneumatic hoses, compressors, and torque sticks. With up to 1,100 ft-lbs of nut-busting torque, this tool provides more than enough power to break away rusted lug nuts.