Mining Rock Drilling Tapered Button Bit Product: taper button bit Taper Degree: 4°46′, 6°, 7°, 11° and 12° Hole Range: 30mm-45mm Number of Buttons: 6 tips, 7 tips, 8 tips, 9 tips or customized Button Shape: normally is ballistic button, also available for spherical button Fitting Rod: (socket inside diameter) 19mm, 22mm or 25mm Inside Socket Design: normal socket, zinc coating or copper liner Skirt Length: (without tip) 50mm, 55mm, 60mm, 71mm, 80mm or customized Suitable Machine: hydraulic rock drill, pneumatic jack hammer, gasoline rock drill Suitable Block: granite and marble

Hot Selling Quarry Rock Drilling Plug Hole Rod The plug hole integral drill steel is widely used in stone pit field to drill small holes. Because of the integration of the drilling rods and drilling bits, it can be metched directly with rock drills without shank adapter or coupling sleeve, these advantages avoid the wastage of energy, and improve the drilling efficiency remarkably.