R32-45mm Threaded Button Bit Premium Rock Drilling Tool Engineered for High-Efficiency Tunneling, Mining, and Quarrying Operations 45 mm Bit Diameter R32 Thread Type Flat Face Face Design 9 Buttons Configuration Product Overview The R32-45mm Threaded Button Bit is a premium rock drilling tool engineered for high-efficiency drifting, tunneling, and underground bench drilling. Manufactured from high-grade alloy steel and ultra-wear-resistant tungsten carbide inserts (spherical