Review on Uxcell Collar Wrench Carbon Woodworking by Travis Caminiti

They make a good depth gauge for a 5mm drill but aren't really the best quality. The included set screws were two different lengths which seemed like a mistake. Also, the Allen key that came with it was so wet it got stuck the first time I used it and it took me some effort to get it out. Using a hex from another set works well.