The dial bore gauge and crank journal micrometer are two tools that every engine builder should have. - Circle Track Magazine Features Events How-To Merchandise Gear Guide Magazine Join ...

Measuring the inside diameter of a main or rod bearing will require a dial bore gauge. The best ones are accurate down to 0.0001-inch and generally come as a set that offers a measurement range ...

Used correctly, a dial bore gauge is one of the best instruments ... calipers and a set of telescoping gauges. The gauges find the maximum inside diameter of an object and lock in place.