First, we'd like to make clear that this torque wrench overview covers gear for the precise tightening of nuts and bolts – the form of the component you'll use on a cylinder head, as an example. effect wrenches (often used for tightening or loosening cussed nuts) fall below a distinctive tool category and have to not be harassed with those. br br While you're looking to buy a torque wrench, you want splendid durability in addition to a high degree of accuracy. In a workshop environment, a torque wrench must be able to take the occasional knock and nonetheless perform well. Many low-value fashions don't rise up to this challenge, however, that doesn't imply you cannot still discover a proper torque wrench on a budget.