Review on 🔩 SNUG Fasteners SNG482 Phillips Concrete: Unrivaled Strength for Secure Fastening by Richard Cuneo

DO NOT BUY! Tight concrete screws from this brand are terrible. They are very fragile and break even with a conventional drill, not with a punch. I tried using them to lay a subfloor on concrete. I pre-drilled the holes, vacuumed and inserted the screws. About a third of them burst, another third did not fully retract. I finished three sheets of plywood before going to the hardware store and buying another brand. I used Ace/true value hardware brand "Gripper". I almost finished my project and installed 10 more panels and only broke one screw.