Control Joint Tool

http://www.AsktheBuilder.com founder Tim Carter demonstrates a cordless electric tool that cuts control joints in fresh concrete. More info here: http://www.bnproducts.com/bnrj-100/ Discover the why and how of concrete control joints: http://www.askthebuilder.com/control-joint-video/ http://www.askthebuilder.com/concrete-cracks/ http://www.askthebuilder.com/concrete-crack-prevention/