The Fish 3000 (F3000) is a heavy-duty disposable and metal detectable knife with a retracting hook blade. The “mouth” of the Fish is ideal for cutting strapping, pallet overwrap and most packaging materials. The addition of a retractable hook blade extends the use to box opening, cutting through tape and corrugated. The Safety Knife Co. LLC,www.safetyknife.net, (314) 645-3900. products