We supplies: varoius (air-leg) rock drill (yt 19 /19a /23 /23d /24 /27 /28 etc), hollow drill rod /shank, integral drill rod, tapered drill rod, tapered drill bits, chisel bits, cross bits.\n\ntop hammer /percussion rock drilling tools: extension drill rod, shank adaptor, coupling sleeves, thread button bits, rock bolting rods and bits, down the hole drilling equipments: dth hammer & bits.\n\nwe supplies: varoius (air-leg) rock drill (yt 19 /19a /23 /23d /24 /27 /28 etc), hollow drill rod /shank, integral drill rod, tapered drill rod, tapered drill bits, chisel bits, cross bits. top hammer /percussion rock drilling tools: extension drill rod, shank adaptor, coupling sleeves, thread button bits. rock bolting rods and bits. down the hole drilling equipments: dth hammer & bits.