ハンドヘルドの岩石掘削装置に使用される硬合金型岩石の角型掘削機

Video Description:
Discover the Tapered 7degree 38mm Carbon Steel Button Bit for Hard Rock Mining, designed for high-performance drilling in tough conditions. Perfect for handheld rock drill rigs, this bit is made from grade hard alloy and special steel, ensuring durability and efficiency in mining, construction, and quarry applications.