Description Maximum Gauges: Aluminum Steel (ga) Copper (oz.) Weight lbs Length in Width in 0.032 24(ga) 20(oz.)7lbs24in11.5in ESE Finish Hand Seamer/180 Single lock hand seamer forms 180 degree bend for hard to reach places. For an entire roof or to start or finish a roof. Lightweight and easy to use Unique leverage design. Will not scratch or peel paint. Compatible on profiles measuring 1/2" or 9/16" across top For a double lock 1/2", pair with ESE 099 finish hand Seamer. For a double lock 9/16", pair with ESE 099HD finish hand seamer. Made in the USA. ESE Machines, Inc. Today, we design and manufacture a wide range of seamers and tools to meet the industry’s emerging needs. And, we go one step further: We continue to move the industry forward by making our knowledge base available to all through free, detailed resource guides. See ESE Tools in Action!