Diamond core drill bit segment brazing magnet tool holder is for retipping core bit barrel. It is used for setting diamond core bit segment on core bit barrel. Features:It is used for setting diamond core bit segment on core bit barrel.The brazing magnet gives you the setting required when brazing your segments onto the barrel.The brazing magnet are made of strong N35EH neodymium magnet with strong magnitism but also high resistance for heat.In the meantime, the retipping magnet are suitable for position the drilling segment on precise side clearance.Also the inner side clearance can be adjust when you put the magnet in its& 39; position. Specifications:Item Size: 71 * 14 * 11mm / 2.8 * 0.6 * 0.4inPackage Size: 85 * 20 * 15mm / 3.3 * 0.8 * 0.6inItem Weight: 60g / 2.1ouncePackage Weight: 65g / 2.3ounce Note:Please allow 1-3mm error due to manual measurement.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package List:1 * Welding Magnet