Internal Thread Button Drill Bits High Drilling Performance For Powerful Percussive Drills

Normal Internal Thread Threaded Button Bits / Borehole Drilling Tools GT60 115mm With Gold/Black/Yellow/red color Rock drilling tools manufacturer ProDrill manufactures high quality rock drill bits. Description: Suitable for powerful percussive drills and top hammers with high speed drifter, , such as Atlas Copco 282 rocket boomer, Atlas Copco 352 rocket boomer jumbo, AtlasCopcoD7roc, FurukawaHCR 1200, Tamrock, and Ingesoll Rand ECM660, the products are widely used in bench