Product Details It is ideal for small repair work and small scale soldering jobs. This product is for use with Sievert torches and torch kits only. It is advisable to switch off at the gas bottle before the torch handle. This allows all the gas to burn from the tube and burner and prevents malfunction, usually caused by a build up of crystallized gas in the burner, blocking the jets. The length of this burner is 42.36mm (51.38mm including the screw). Other sizes are available. Use with Sievert Neck Tube 3511
