
Positive first. This tool is well made, durable and beautifully chrome plated. The adapter for use with a drill is of the same quality. Unfortunately, due to the design of the tool, there is a 1/4 inch depth limit. That said, if you're just using this tool to loosen/tighten screw heads, it works great. However, if you want to loosen/tighten a nut that has a stud longer than the nut (more than 1/4 inch high), the tool will not grip the nut and tightening/loosening will not be possible. (If the bolt is flush with the top of the nut and the overall height is 1/4", this tool will work, but most nuts on bolts are rarely flush.) I don't know if similar tools have the same 1/4" Depth limitation, but for that reason I don't recommend this particular tool.