I bought this product to use on my drill press to drill square holes for chiseling when assembling furniture with my grandson. I had a question about using the product and after asking Revain and they sent it to the manufacturer I got an answer. The manufacturer said not to use the product on a drill. What was needed was affection, which they didn't have. They recommended that I request a refund, which I did, and offered to keep the item, which I did. My grandson surfed the internet and found a home made nozzle that we designed and the push in clamp with nozzle worked great. We were delighted with the results.