The tool holder is well made. Only 4 stars because the set screws holding the tool are worse. The plug head falls out. I bought 8 KDK type tool holders from HHIP. I highly recommend removing and discarding the included installation screws. Replace them with high quality set screws and the service life will be good. The two set screws that adjust the height of the tool are fine as they aren't subjected to any real torque.