70mm 1/2" GAS Thread Adaptor for Water Swivel Chuck – Diamond Core Drill Extension

70mm 1/2" GAS Thread Extension Adaptor for water swivel chucks is a professional-grade accessory for diamond core drilling, designed to extend drilling depth and provide access to tight or hard-to-reach areas with maximum precision. Manufactured from high-strength stainless steel or hardened alloysteel, this adapter ensures secure thread alignment, wobble-free rotation, and long-lasting durability in both dry and wet drilling applications. Available in lengths from 35mm,37mm,40mm,45mm,55mm,60mm,65mm,70mm and 75mm, it is fully compatible with all 1/2" BSP/GAS thread water swivesl and diamond core drills. Its corrosion-resistant finish makes it ideal for wet drilling environments, maintaining coolant flow to prevent overheating and extend the lifespan of core bits. Perfect for glass, quartz countertops, stone , ceramics , tiles , constructiondrilling, and even lapidary or jewelry making, this extension adapter r delivers clean, chip-free cuts with improved tool stability. By preventing misalignment, binding, and excessive heat, it ensures professional-quality results and reliable performance in both industrial and precision drilling setups.