Sievert 3537 Jewellers Gas Blow Torch Burner – 8mm Diameter The Sievert 3537 Needle Flame Gas Blow Torch Burner is the perfect tool for professional jewellers and craftsmen requiring precision and reliability. This burner, supplied in two parts—a Sievert 3501 neck tube and an 8842 needle point burner—produces an ultra-fine flame ideal for intricate jewellery soldering, silver and gold work, and precious metal clay applications. When assembled, the burner connects seamlessly to the Sievert Pro handle, delivering unparalleled accuracy for detailed projects. Designed for precision, the needle flame is smaller and more refined than standard Sievert precision burners, making it the go-to choice for delicate soldering and forging tasks. Key Features