fiberglass cover

Tungsten carbide, an alloy composed primarily of tungsten and carbon, is renowned for its exceptional hardness and wear resistance. It is these properties that make it the ideal material for manufacturing mining button bits. The 'button' refers to the protruding segments of tungsten carbide that are brazed onto the drill bit, creating a robust cutting edge capable of withstanding the intense pressures and abrasive conditions encountered deep within the earth.

...

The term 'rotary' in the name refers to the unique mechanism that sets it apart from other drilling tools. Unlike traditional drills, a rotary jackhammer employs a combination of rotation and hammering action, making it highly effective in breaking through hard materials like concrete, rock, and masonry. Its operational principle is based on a reciprocating piston, which generates a series of rapid blows, driving a chisel into the surface with immense force.

...