Features 1、Precious metal jewelry necklace welding, enameled wire lead welding, laboratory hydrogen oxygen flame. 2、It can be used for efficient polishing, capillary glass tube sealing, etc. 3、Reliable to use and pressure resistance. Come with complete accessories. 4、Suitable for welding various precision products such as gold, silver, etc. 5、Made of quality metal and brass material, durable and sturdy, long service time. Specification Condition: 100% Brand New Item Type: Jewelry WeldingTorch Material: Metal + Brass Function: Precious metal jewelry necklace welding, enameled wire lead welding, laboratory hydrogen oxygen flame. It can be used for efficient polishing, capillary glass tube sealing, etc. Installation method: suitable for chemical-resistant soft hose, generally connected to the hose behind the water-hydrogen flame gun, 1.5-2MM away from the machine air outlet, and 0.3-1M away from the gun. Precautions for use: 1. The nozzle of the spray gun must be tightened to prevent air leakage. (Note: The gunframe can be used as a wrench to tighten the nozzle) 2. The nozzle model determines the thickness of the flame, from small to large: needle ABC 3. The special large nozzle should be used alone. 4. If the hose is tempered several times in succession or bursts, it needs to be repaired or replaced with a new flame gun. Size: Approx. 4.2 x 200mm / 0.2 x 7.9in Package List 1 x Jewelry WeldingTorch 5 x Accessory 1 x Wrench 1 x Nozzle 1 x Box