China Tapered Drilling Tools Manufacturers and Suppliers ...
2021-8-26u2002·u200232-45mm Small Hole Blasting Tapered Rock Drilling Button Bits. 32-45mm Small Hole Blasting Tapered Rock Drilling Button Bits 1. Taper chisel bit The taper chisel bit is widely used in drilling holes with depth less than 5 meters and diameter ranged in 20-45 mm by light-duty rock drill…
Get Price