단단한 암석 드릴링 36 밀리미터 끝이 좁아진 버튼 비트

Video Description:
Discover the 36mm Hard Rock Drilling Tapered Button Bit, designed for high-performance rock drilling in mining, construction, and quarry applications. Made from grade hard alloy and special steel, this bit is perfect for light-duty rock drills and versatile in various industries.