T45 89MM nút dây khoan Bits khoan đá cứng Công cụ khai thác mỏ

Video Description:
Discover the T45 89MM Thread Button Drill Bits, designed for hard rock drilling in mining and construction. These high-efficiency tools feature tungsten carbide inserts and are ideal for drilling quartzite, basalt, and granite. Enhance productivity and reduce costs with our durable and reliable drilling solutions.