装潢.建筑.玻璃.玻璃开孔器.玻璃吸盘.大理石开孔

(ZHENGFENG )tubular drill is produced from high-quality steels ,with a diamond sputtering on its working area,providing a high efficiency process and accuracy in cutting .it is designed with special gashes that prevent a tool from overheating ,and a rodchips easily after you finish work. The (zheng FENG)tubular duill is highly effectively for glass drilling.