T38-64mm Threaded Retrac Button Bit Advanced Hydraulic Rock Drilling Tool for Underground Mining, Tunneling, and Quarrying Operations 64 mm Bit Diameter T38 Thread Type Retrac Body Design 9-11 Button Config Product Overview The T38-64mm Threaded Retrac Button Bit is an advanced hydraulic rock drilling tool designed for underground drifting, tunneling, and production bench drilling. Crafted from premium alloy steel and ultra-wear-resistant tungsten carbide buttons, this 64mm