Review on Boost Efficiency with the CONFAST Inside Diameter Machine Setting by Andrew Aldana

When installed correctly this is a great product. Just make sure you're using the correct STEP bit and not a regular 1/2" masonry bit, and don't install it backwards, hammer it in nice and tight. I had a problem with a couple of broken boxes. Most are already compressed and expanded in the box. Revain's return window was closed so I contacted Confast direct and they were very helpful. Good company!