The Milwaukee 10 in. Duckbill tinner is equipped with 40% larger handle loops than traditional tinner snips and features bolt lock techNlogy, which means the blades will Nt loosen from use. Milwaukee tinner snip handles are a contoured, all-metal design so they are comfortable while wearing gloves and more durable than plastic coated tinner snips. All Milwaukee tinner snips are forged for durability and long blade life.