Fixed blade metal detectable safety knives keep the cutting edge shielded inside the body, so there is no exposed blade to cut the operator and no mechanism to fail. Each has a detectable body that can be found if the knife is lost on the line. The Penguin 900 conceals two stainless steel blades plus a tape cutter for strapping, tape and stretch film, in four colors. The Fish 200 does the same job with a choice of hook blade or tape cutter and a simple two-screw blade change. The Swan bag cutter has a pointed nose that pierces ingredient bags and sacks, with no removable parts. The Boxer 700 pairs a hook and a straight blade behind an auto-retracting guard for boxes and cardboard. Prefer a blade that extends and retracts? See retractable safety knives, or browse all detectable safety knives and metal detectable knives. Seal up afterward with detectable tape, verify your line with metal detector test pieces, or request a sample.