
R32,R38,T38,T45,T51,GT60 thread extension rod &MF rod .
(1) Threaded connection:R22,R25,R32,R38,T38,T45,T51 and so on .
(2) Diameter:OD32mm,OD38mm,Hex32,Hex35mm and so on .
(3)Length:600-6400mm.
(4)Package:Wooden case or wrapped with palstic knitting and then packed into bundles or as per your requests.
Different types of drill rods |
Type: Hex.Drifter Rod,Extension Rod,Speed Rod ,MF Rod
Color: Based on customer ruquirments
Material: Tungsten Carbide and high strength alloy steel
Processing: CNC milling and proprietary heat treatment process
• Underground mining
• Tunneling,quarrying
• Widely used in benching, and long hole drilling
Extension Rod Specifications |
Dimensions |
Length
mm |
Length
ft |
Diameter
mm |
Diameter
in |
Part Number |
3660 |
12 |
60 |
2 3/8" |
4148301800 |
4265 |
14 |
60 |
2 3/8" |
4148301801 |
6095 |
20 |
60 |
2 3/8" |
4148301802 |
4265 |
14 |
64 |
2 1/2" |
4148301803 |
4265 |
14 |
87 |
3 1/2" |
4148301804 |
5335 |
17 |
76 |
3" |
4148301805 |
Drill bits Specifications |
Bit Dia. |
Buttons and Size (mm) |
Flushing Hole |
Weight |
Part Number |
mm |
Front |
Gauge |
Front |
Side |
kg |
102 |
6x14 |
8x14 |
2 |
- |
8.7 |
4148301806 |
105 |
6x14 |
8x14 |
2 |
- |
8.9 |
4148301807 |
110 |
6x14 |
8x16 |
2 |
- |
9.4 |
4148301808 |
115 |
6x14 |
8x16 |
2 |
- |
9.6 |
4148301809 |
127 |
4x14, 3x14 |
8x16 |
4 |
- |
10.8 |
4148301810 |
152 |
8x14 |
9x16 |
3 |
- |
16.2 |
4148301811 |



☑ 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. |
☑ 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. |

To work with us is your best choice !