SKIL PWR CORE 12-volt Variable Speed Brushless 3/8-in Drive Cordless Ratchet Wrench (Battery Included) in the Impact Wrenches department at Lowes.com
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Ratchet Wrench, 5/16in 0.4in Battery Terminal Wrench, Side Terminal Battery Wrench with 1/2in Socket, Metal Battery Terminal Wrench Ratchet for Top Side Post Battery - Amazon.com
Duralast side Terminal Battery Wrench
21 Volt 1/2-in Cordless Electric Impact Wrench, Battery Power | ATO.com