Feature: 1. User Target Audience: Use with acetylene, hydrogen, propane, propylene, map and natural gas. Hose connects to any standard pressure regulator 2. Durable: Made of high quality material, durable. The maximum welding temperature can get more than 1700 degrees 3. Type: Equipped with special connectors for household oxygen and butane (liquefied petroleum gas). The attached nozzle provides a wide range of flame lengths and heat output for various metals and thicknesses 4. Change Length: The operator can adjust the oxygen and gas valves on the torch to change the flame length according to his or her exact requirements 5. Suitable For: Gold, silver ,K gold,platinum,palladium,copper,tin alloy and other accuracy products of the welding process and some other metals. Ideal for all areas of microbonding work Specification: Item Type: Mini Gas Torch Material: Metallic Copper Line Length: Approx. 205cm / 80.71in Nozzle Length: Approx. 4.3cm / 1.69in Weight: Approx. 325g / 11oz. Package List: 1 x Mini Gas Torch5 x Interchangeable Torch Tips1 x User Manual