Just for information and not really associated with torqueing a oil pan drain plug. I have purchased a couple of Proto torque wrenches over the years. A .50 drive ratchet C6014C and a .38 drive 6006C ratcheting. They replaced a couple of Craftsman torque wrenches that are all now breaker bars with a cheater pipe at times. The Proto tools were a little pricey but they were well worth it. If you are going to purchase a .50 drive torque wrench I would suggest that you get the 250 FT/LB version. As a example my wife's Ford Edge calls out 162 FT/LBS on the wheel studs. My 3/4 ton truck calls out 140 FT/LBS on the wheel studs. Just some information. Later.