Soldering Block Welding Solder Magnesium Jewelers Tool
Magnesia Soldering Blocks For Soldering Jewelry & Fine Welding. This is a new magnesia soldering block. It is made of a soft, fire proof magnesia material. Great for holding pins or small work pieces, soldering and fine welding. Can withstand temperatures of up to 2000 F (1093 C). Measures approximately 6" x 3" x 1 1/2" (152 x 76 x 37 mm).