T38 64mm Tungsten Carbide For Rock Drill Retrac Button Bit
Description
Bit Type:
Head Diameter :40 mm -200 mm (D)
Bit Type: Button Bit
Button Type: Semispherical Button, Ballistic Button, Conical Button
Thread: R25, R32, R38, T38, T45, T51,GT60
Bit Body: Retrac Skirt
Bit Face: Flat Face, Concave Face, Convex Face, Drop-Center Face
Material: High quality tungsten carbide
Application:
The Retrac Bits are widely applicable to mining industry, tunneling
and underground engineering, open pit, construction drill, blast
industry, civil engineering operations,
road, gas line, pipe and trench projects, quarry work, rock
anchoring and ground stabilization projects, water well industry,
etc,.
Usage
Type of Buttons:
Semispherical button:
This type button is suitable for very abrasive and very hard rock
formations.
Ballistic button / Parabolic button:
This type button is suitable for medium abrasive and medium hard
rock formations.
Conical button:
This type button is suitable for soft abrasive and soft rock
formations.
The selection of Bit Face Type:
Drop center face bit:
It has high penetration rates in soft to medium hard and fissured
rock formation, and has better hole deviation control.
Concave face bit:
It’s suitable for medium hard and similar rock formations, it has
good hole deviation control and good flushing capacity.
Convex face bit:
It has high penetration rates in soft to medium-hard rock
formation. It has the best performance of resistance to steel wash,
and reduce the load and wear on the gauge buttons, but it has poor
hole deviation control.
Flat face bits:
It’s suitable for hard to very hard and abrasive rock formations.
The selection of Bit skirt:
Retrac skirt:
This type design can get better hole deviation control while
drilling, it can get bit back easily while the bit is jammed during
drilling.
T38 Retrac Button Bit Specification:
| Diameter | Buttons and Size (mm) | Flushing hole | Weight | Part Number |
| mm | inch | Front | Gauge | Angle | front | Side | kg |
| Spherical |
| 64 | 2 1/2 | 4×10 | 8×10 | 30° | 2 | - | 2.2 | 4148300737 |
| 64 | 2 1/2 | 3×10, 1×10 | 6×11 | 35° | 3 | - | 2.2 | 4148300738 |
| 70 | 2 3/4 | 4×11 | 8×11 | 40 | 2 | - | 2.4 | 4148300739 |
| 70 | 2 3/4 | 3×10, 1×10 | 6×13 | 35° | 3 | - | 2.4 | 4148300740 |
| 70 | 2 3/4 | 4×10, 1×10 | 8×11 | 35° | 4 | - | 2.4 | 4148300741 |
| 76 | 3 | 4×11 | 8×11 | 40 | 2 | - | 3.3 | 4148300742 |
| 76 | 3 | 4×11, 1×11 | 8×10 | 35° | 4 | - | 3.3 | 4148300743 |
| 76 | 3 | 4×11, 1×11 | 8×12 | 35° | 4 | - | 3.3 | 4148300744 |
| 89 | 3 1/2 | 4×13 | 8×13 | 40 | 2 | - | 4.8 | 4148300745 |
| 89 | 3 1/2 | 5×13 | 8×13 | 35° | 2 | - | 4.8 | 4148300746 |
| 89 | 3 1/2 | 6×11 | 8×12 | 35° | 2 | - | 4.8 | 4148300747 |
| 89 | 3 1/2 | 4×11, 1×11 | 8×13 | 35° | 4 | - | 4.8 | 4148300748 |
| 89 | 3 1/2 | 4×13, 1×13 | 8×13 | 35° | 4 | - | 4.8 | 4148300749 |
FAQ
Q1: What’s your delivery time?
A: Commonly product need 20 days to produce, within 3 days if in
stock.
Q2: What’s methods of payments are accepted?
A: We agree T/T ,L/C ,West Union ,One touch ,Money Gram ,Paypal.
Q3: What about the Shipments?
A: Bases on other quantity .We can send it to you by Express ,by
Air ,by Sea ,and by Train.Or send the goods to your Chinese agent.
Q4: How to control the quality?
A: We should be checking & testing everyone button bit before
shipment.
Q5: Do you agree sample order ?
A: Yes ,we are welcome your sample order to testing our quality.
Q6: Can we select the button bit color?
A: Yes ,we have golden ,green ,black for your choice.
Q7: Can we change to our mark on the button bit?
A: Yes ,we can casting your company mark on the button bit.(Except
sample order)
Q8: Do you have after-sale service and warranty service ?
A: Any Quality or quantity problem once confirmed,we will be
compensate you the same. Any question or problem we will be reply
you within 24 hours.
Q9: Can I trust your company ?
A: Our company has been certificated by Chinese government ,and
verified by Ali baba Trade Assurance. 100% refund of the Trade
Assurance Amount .Ali baba can guarantee all of you payment .
