0.001 Dial indicator. With a special, high-tension spring, this gauge remains conveniently positioned on the bolt during tightening, with adjustability for bolts up to 2.75"" long. Simply position the stretch gauge over the length of the rod bolt before applying torque, take a reading, and record it.

Brand: Proform
Manufacturer Part Number: 66788
Type: Engine Connecting Rod Bolt Stretch Gauge Tool
UPC: 00037995667888