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This is the Harbor Freight digital torque adapter. It fits between a breaker bar and the socket and converts torque to a digital readout. The tool delivers a digital readout (which can be hard to see during use), but also offers two yellow and one red warning light along with “progressive audio notification” beeps as the selected torque is achieved. The unit has a usable range of 30 to 147.5 lb-ft. The tool also includes adapters so you could use it with 3⁄8- or even 1⁄4-inch drive sockets. Best yet—it has a lifetime warranty.