A PROVEN WORK KNIFE The Sheffield Utility Series 12613 Ultimate Lock Back Utility Knife features a one-hand opening operation for ease of use, allowing you to cut through all obstacles – such as paper, cardboard, rope, and more. It even makes a great sheetrock knife. This Sheffield Utility Knife also boasts a quick-change mechanism for quick and easy utility blade replacement—and it conveniently uses standard utility knife blades. You’ll love the feel of the textured aluminum handle, and the convenience of the easy open, easy close action. And with the included belt clip / pocket clip, your new favorite knife will always be close at hand. COMPARE IT WITH YOUR OLD UTILITY KNIFE If you’re looking for a new razor blade knife that’s less hassle and maintenance than your old razor knife, the Sheffield 12613 Ultimate Lock Back Utility Knife is unparalleled in usefulness or ease of use. SHEFFIELD 12613 ULTIMATE LOCK BACK UTILITY KNIFE – FULL SPECS: - 6 inches open length - 3-1/2 inches closed length - Patented quick-change blade mechanism - Lock back design - Thumb stud - Textured aluminum grip with pocket clip / belt clip - Uses standard utility blades