Just drill the right sized hole slightly larger than the nut body, Add the Nutsert to the tool and stick it in the hole. Squeeze the gun to compress. I think I squeezed the handle 4 or 5 times until the Nutsert is solid. Unscrew the tool and add your hanger. I bought a cheap kit from Harbor Freight and I didn't have high hopes that it would even work but it worked fine.
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