I had to jump through all kinds of hoops to get one because they were having difficulty obtaining a major part. I finally found one on ebay and sent it to Frank and he made me one. I installed it, but never really got accustomed to it. I thought it would speed up blade changes, but I eventually went back to the original clamps. It was likely a case of pilot error because most people I have spoken with love them. Mine is sitting in a baggie on my saw.