TAC FORCE Spring Assisted Open Rescue FIRE FIGHTER Glass Breaker Pocket Knife TAC FORCE Spring Assisted Open Rescue FIRE FIGHTER Glass Breaker Pocket Knife. Tac Force Speedster Rescue Linerlock Fire Fighter. 5" closed. 3 1/2" black finish stainless partially serrated assisted opening blade with dual thumb studs and extended tang. Black composition handles with red aluminum trim. Fire Department inlay shield. Integrated seat belt cutter and glass breaker. Lanyard hole. Stainless pocket clip. This knife comes brand new in box.