3-4 inch High Air Pressure DTH Bit-Zhengzhou Kaishan Mechanical & Electrical Equipment Co., Ltd.

Applications

DTH drill bits are 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

Advantage of High Air Pressure DTH Bit

1. Cemented carbide buttons
2. Excellent flushing
3. Spherical, ballistic, parabolic inserts
4. longer life

Features

1. Reliable quality with steady performance
2. Strictly material chosen ensures long service life
3. Good flushing effect increases drilling rate

3 inch high air pressure DTH bits

Drill Bit	The Drill Head Diameter (mm)	Spline Key Number	Gauge Buttons	Front Buttons	Weight	Part No
	85	2	6XΦ13	4XΦ12	4.2	COP32-85
	90	2	6XΦ14	4XΦ12	4.5	COP32-90
	95	2	6XΦ14	4XΦ13	4.7	COP32-95
	100	2	6XΦ14	5XΦ12	5.0	COP32-100
	105	2	6XΦ14	5XΦ13	5.3	COP32-105
	85	2	6XΦ13	4XΦ12	3.8	BR3-85
	90	2	6XΦ14	4XΦ12	4.0	BR3-90
	95	2	6XΦ14	5XΦ12	4.3	BR3-95
	100	2	8XΦ13	6XΦ13	4.8	BR3-100
	105	2	8XΦ13	6XΦ13	5.2	BR3-105
	85	2	6XΦ13	4XΦ12	4.2	HD35-85
	90	2	6XΦ14	4XΦ12	4.5	HD35-90
	95	2	6XΦ14	4XΦ13	4.8	HD35-95
	100	2	6XΦ14	5XΦ12	5.0	HD35-100
	105	2	6XΦ14	5XΦ13	5.5	HD35-105
	85	2	6XΦ13	4XΦ12	4.5	QL30-85
	90	2	6XΦ14	4XΦ12	4.7	QL30-90
	95	2	6XΦ14	4XΦ13	4.9	QL30-95
	100	2	6XΦ14	5XΦ12	5.0	QL30-100
	105	2	6XΦ14	5XΦ13	5.5	QL30-105

4 inch high air pressure DTH bits

Drill Bit	The Drill Head Diameter (mm)	Spline Key Number	Gauge Buttons	Front Buttons	Weight	Part No
	105	2	6XΦ14	5XΦ13	8.5	HD45-105
	110	2	7XΦ14	6XΦ13	8.8	HD45-110
	115	2	7XΦ14	6XΦ13	9.0	HD45-115
	120	2	8XΦ14	7XΦ13	9.8	HD45-120
	127	2	8XΦ14	7XΦ13	11.0	HD45-127
	105	2	6XΦ14	5XΦ13	9.0	SD4-105
	110	2	7XΦ14	6XΦ13	9.5	SD4-110
	115	2	7XΦ14	6XΦ13	9.8	SD4-115
	120	2	8XΦ14	7XΦ13	11.5	SD4-120
	127	2	8XΦ14	7XΦ13	12.3	SD4-127
	105	2	6XΦ14	5XΦ13	9.0	QL40-105
	110	2	7XΦ14	6XΦ13	9.2	QL40-110
	115	2	7XΦ14	6XΦ13	9.5	QL40-115
	120	2	8XΦ14	7XΦ13	10.3	QL40-120
	127	2	8XΦ14	7XΦ13	11.5	QL40-127
	105	2	6XΦ14	5XΦ13	6.0	HM4-105
	110	2	7XΦ14	6XΦ13	6.2	HM4-110
	115	2	7XΦ14	6XΦ13	6.6	HM4-115
	120	2	8XΦ14	7XΦ13	7.0	HM4-120
	127	2	8XΦ14	7XΦ13	7.4	HM4-127