Hot Knife Loading Tool - Guardian | PuffCoThe Guardian Hot Knife, an electronic heated loading tool, is a chrome finished limited edition from the Guardian collection. It makes loading your concentrates a simple, clean, and effective process. No more dirty dab tools, sticky residue on clothing or surfaces, or having to wipe concentrates on the side of the bowl. Just hold down the button, and your oil drops right off in 3 seconds.*Caution tip gets very hot use cap to store when finished.