Armstrong Mini tool Knife 74-557 USA The Mini-Multipurpose Tool is the ideal pocket tool/key ring companion. Compact and lightweight only 2-3/4" long and weighing only 1-3/4" ounces, make this tool and ideal taskmasker. The exclusive "Locking L" safety lock, locks each blade or implement securely in place during use. Caplifter locking device, small screwdriver, unique modified phillips screwdriver, medium screwdriver, clip blade, teezers, nail file cleaner, swiss type scissors, swivel lanyard attachment, ruler american metric. K10