دامن کوتاه قابل اعتمادی با دکمه کوچیک دو سوراخ 42 میلی متری

Video Description:
Discover the 11 Degree 7 Buttons Carbide Steel Tapered Button Bit for Rock Drilling, designed for hard rock applications in mining and construction. This high-performance bit features tungsten carbide tips and hot-plated skirts for enhanced durability and drilling efficiency.