Our High air pressure DTH drill bits |
Bits diameter | Shank | ||
Metric | Inch | ||
1" | 64mm-70mm | 2 1/2"-2 3/4" | BR1 |
2" | 70mm-95mm | 2 3/4"-3 3/4" | MACH20/BR2 |
3" | 90mm-102mm | 3 1/2"-4" | COP32/COP34/MACH303 |
M30/DHD3.5/BR3 | |||
4" | 105mm-152mm | 4 1/8"-6" | COP44/DHD340/MACH44 |
SD4/M40/QL40 | |||
5" | 133mm-165mm | 5 1/4"-6 1/2" | COP54/DHD350R/MACH50 |
SD5/M50/QL50/BR5 | |||
6" | 152mm-254mm | 4 1/8"-10" | COP64/DHD360/SD6 |
M60/QL60/Bulroc BR6 | |||
8" | 203mm-330mm | 8"-13" | COP84/DHD380/SD8 |
QL80/M80 | |||
10" | 254mm-380mm | 10"-15" | SD10 |
NUMA100 | |||
12" | 305mm-508mm | 12"-20" | DHD1120/SD12 |
NUMA120/NUMA125 |
Specifications of 4 inch DTH drill bit |
4 inch Middle Air Pressure DTH Bits | |||||
DHD340A (COP44) | THE Drill Head Diameter(mm) | NO.Air Holes | Gauge Buttons | Front Buttons | Weight(KG) |
105 | 2 | 6XØ14 | 5XØ13 | 8.5 | |
110 | 2 | 7XØ14 | 6XØ13 | 8.8 | |
115 | 2 | 7XØ14 | 7XØ13 | 9 | |
120 | 2 | 8XØ14 | 7XØ13 | 9.8 | |
127 | 2 | 8XØ14 | 7XØ14 | 11 | |
SD4 | 105 | 2 | 6XØ14 | 5XØ13 | 9 |
110 | 2 | 7XØ14 | 6XØ13 | 9.5 | |
115 | 2 | 7XØ14 | 7XØ13 | 9.8 | |
120 | 2 | 8XØ14 | 7XØ13 | 11.5 | |
127 | 2 | 8XØ14 | 7XØ14 | 12.3 | |
QL40 | 105 | 2 | 6XØ14 | 5XØ13 | 9 |
110 | 2 | 7XØ14 | 6XØ13 | 9.2 | |
115 | 2 | 7XØ14 | 7XØ13 | 9.5 | |
120 | 2 | 8XØ14 | 7XØ14 | 10.3 | |
127 | 2 | 8XØ14 | 7XØ14 | 11.5 | |
Mission 40 | 105 | 2 | 6XØ14 | 5XØ13 | 6 |
110 | 2 | 7XØ14 | 6XØ13 | 6.2 | |
115 | 2 | 7XØ14 | 7XØ13 | 6.6 | |
120 | 2 | 8XØ14 | 7XØ13 | 7 | |
127 | 2 | 8XØ14 | 7XØ14 | 7.4 |
Package |
Picture of 4 inch DTH drill bit |
Picture of other products |
OUR SERVICE |
☑ We will provide more precisely and efficiently manufacture and serve according to clients' drawings. |
☑ We have professional QC team to ensure your product more better. |
☑ Check the raw material before starting production. |
☑ Have the random inspection during the processing. |
☑ Make the 100% inspection before the shipments. |
WHY ARE YOU CHOOSE US |
☑ We have been engaged in tapered cross bit for more than 20 years. |
☑ apered cross with conical pipe drilling perfect; |
☑ Reliable work, high cost performance; |
☑ Accurate the dimension of taper degree perfectly matches the rods; |
☑ High grade tungsten carbide inserts; |
☑ The drill bit is made of high quality steel and uses the most advanced CNC machinery and heat treatment process. |
about uS |
FAQ |