11° 38мм 7 кнопки конические кнопки для бурения гранита из твердой породы

Video Description:
Discover the Tungsten Carbide 40mm Tapered Button Bit, a small hole blasting tool designed for hard rock granite drilling. Ideal for mining, quarrying, and construction projects, this bit offers durability and efficiency, reducing costs and speeding up progress.
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