Looks good but not very impressive performance; Battery powered drills?, bull! You can't maintain a consistently high level of torque with battery-powered tools. It doesn't work without changing the battery. I would use a corded hammer drill fitted with a good quality torque limiting clutch as most battery powered drills can't do more than a few good sets. A powered or pneumatic plumber is the best way to hammer this type of fastener, but it costs several hundred dollars; too rich for my limited prototyping needs. Going back to the lever powered pullers I currently use; They are cheaper and give me better vision. The price of this tool seems reasonable for what it is and how it should be used, but it's a bit clumsy to use. Also, I have yet to hear anything from the manufacturer regarding the request I sent. Not impressed, not impressed at all