First, it is designed to be mounted on the end of a drill or screwdriver. The latch that allows it to fit into the driver is non-standard so it won't snap. Secondly, it immediately became dull and unusable after a few seconds of use. I have a trailer with a spare attached to the side. The threaded rod is too long to put a deep muff on to get an eyelet so I removed the spare tire, cut the threaded rod to a shorter length and used that to try and fix the edge as intended. that does not work. . I had to break out the faucet and rethread the threads to clean the steps and install the grommets. 9 wasted dollars.