Product Details

Product Application

DTH drilling tool is widely used in underground mining, quarries, hydraulic and Hydro-Power Engineering, water well drilling, Mineral exploration, anchoring hole drilling, geothermal engineering, Subway excavation, another civil engineering. it has the advantage of high flatness, smooth hole wall, high rigid of drill rod and hammer, independent of high axial thrust, no limit of drilling depth, low cost of devices and easiness to maintain. At the drilling hole of dia.105mm-dia.500mm, a plenty of the DTH drilling tools are used.

Future

1.Button bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations (between 200 Mpa to 260 Mpa compressive strength).Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture.

2.Recommended for eliminating hole deviation

3.Widely used drifting and tunneling

4.Bit face design is ideal for medium-hard to hard abrasive rock

Product Description

QL30,QL40,QL50,QL60,QL80 DTH bit

QL shank Bits	Bit Dia(mm)	Bit Dia(inch)	Air Hose	Guage buttons	Front buttons	Part No
QL30	85	3 11/32"	2	6×φ13	4×φ12	QL30-85
	90	3 1/2"	2	6×φ14	4×φ12	QL30-90
	95	3 3/4"	2	6×φ14	4×φ13	QL30-95
	100	3 7/8"	2	8×φ12	6×φ12	QL30-100
	105	4 1/8"	2	8×φ13	6×φ12	QL30-105
QL40	105	4 1/8"	2	6×φ14	5×φ13	QL40-105
	110	4 1/4"	2	7×φ13	6×φ13	QL40-110
	115	4 1/2"	2	7×φ14	6×φ13	QL40-115
	120	4 3/4"	2	8×φ14	6×φ14	QL40-120
	127	5	2	8×φ14	7×φ14	QL40-127
QL50	133	5 1/4"	2	7×φ16	6×φ14	QL50-130
	140	5 1/2"	2	7×φ18	7×φ14	QL50-140
	146	5 3/4"	2	8×φ18	7×φ14	QL50-146
	152	6"	2	8×φ18	8×φ14	QL50-152
	165	6 1/2"	2	8×φ18	8×φ16	QL50-165
QL60	152	6"	2	8×φ16	8×φ16	QL60-152
	165	6 1/2"	2	8×φ18	8×φ16	QL60-165
	178	7"	2	8×φ18	8×φ18	QL60-178
	190	7 1/2"	3	9×φ18	9×φ16	QL60-190
	203	8"	3	9×φ18	9×φ18	QL60-203
QL80	195	7 11/16	3	9×φ18	9×φ16	QL80-195
	203	8"	3	9×φ18	9×φ18	QL80-203
	216	8 1/2"	2	10×φ18	12×φ16	QL80-216
	254	10"	3	11×φ18	17×φ16	QL80-254
	305	12"	4	12×φ18	29×φ16	QL80-305