버튼 비트 금 보고 텅스텐 카바이드를 꿰뚫는 T45 스레드

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March 09, 2023
Video Description:
Discover the 102mm T45 Drill Bit Drifter Tungsten Carbide Top Hammer Bench Drilling, designed for hard rock drilling with high resistance and low breakage. Perfect for R22 to T60 rock drill rods, this thread button bit ensures high footage speed and durability.