Not a clue, but I've got to say that looks like a nice tool. As someone who was brought up long before battery tools became a thing I'm constantly amazed at how good, and how powerful, a battery tool can be. I have a DeWalt cordless drill/driver which has been a real workhorse for me. I recently built some decking and I reckon it must have put in about 800 screws. I hate to think what that would have been like with an ordinary screwdriver.