Achei super legal esse benchdog... ajuda muito para prender superficies na bancada e é facil de usar... os furos da bancada tem que ter entre 19,5 e 20 mm porque o pino tem 3/4"

Product arrived very well packaged and much earlier than the promised date. I was pleasantly surprised at the quality of material and manufacture. I've read somewhere that this is very similar to the Festool version. I did a quick test of how well it works. It performed rather well. Its "throw distance" - travelled from relaxed position to its operating tightness was about 5/16 of an inch, which is quite ample and sufficient. I initially wanted to give it a 4 star rating because it requires to be securely held but it had all the hardware necessary to make it work. I don't know how the Festool version works because I don't have them so I can't make a comparison. For what I will be using this for, I believe it deserves a 5 star rating and the price is right!