Dado Cartridges for 8" Dado Sets. Revolutionary SawStop protection: Dado brake cartridge stops the spinning blades on contact with skin reducing the chances of a catastrophic injury. Compatible with all standard 8" dado sets up to 13/16? thick. Compatible with all woods and other non-conductive materials. 1 locking key allows the user to quickly and easily switch between the standard brake cartridge and dado brake cartridge when making standard or dado cuts.