Perform accurate quality control checks on your tools with this 1/2 in. Drive Electronic Torque Tester. With a fast sampling rate for optimal precision in your measurements and a design that allows it to be portable or bench-mountable, it provides enhanced accuracy no matter where you are. A 9V battery supplies up to 50 hours of runtime and the included male and female adapters offer true versatility, allowing you to test a variety of tools.