Small hole drilling tools, mainly equipped with hand-held Air-leg Rock drill, used for stone mining or drilling aperture of 28-42mm hole, hole depth is usually less than 7m. Product categories include: the Integral drill equipment, Stone hole tools, taper rod and taper bit. Light-duty rock drilling tools mainly equipped with guide rail type pneumatic rock drill for underground mines, anchoring holes and shallow hole mining blasting hole drilling, as well as the mine shaft sinking.