• thread drilling bit from China T38 dia76mm System 1
  • thread drilling bit from China T38 dia76mm System 2
  • thread drilling bit from China T38 dia76mm System 3
  • thread drilling bit from China T38 dia76mm System 4
thread drilling bit from China T38 dia76mm

thread drilling bit from China T38 dia76mm

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
20 pc
Supply Capability:
10000 pc/month

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We are specialized in rock drilling toolssuch as taper button bit, thread button bit, Integral drill rod, DTH bit, DTH hammer, Air leg rock drill, Excavator Mounted rock driling and splitter, expansive mortar.

 

Product:

Thread Button Bits: High quality and several thread with various carbide tips like YK05 are available. All products can be developed upon customers' request. Premium designs and steel and premium tungsten carbide insert grade T6 supplied by Boart Long year, Offers industry-leading strength and penetration rates for more productivity, Excellent straightness and hole clean quality, Get max. drilling performance for rock drills with long life to save up fuel cost rate. 

thread drilling bit from China T38 dia76mm

 

Description of button bit:

Our company supply all kind of button bits with Rope thread

R32-43MM, R32-45MM, R32-51, R32-64, R32-76;

T38-64, T38-76MM, T38-89, T38-102MM;

T45-76MM, T45-89MM, T45-102MM;

T51-89MM, T51-102MM, T51-127MM etc.

all face design, flat face, drop-center face, normal body and retrac body.more

 

Specification of button bit:

Thread

Diameter range

Skirt Design

Face Design

Button Design

R22

35 – 45mm

Normal

Flat Face
Drop Centre

Hemispherical
Ballistic

R25

33 – 57mm

Normal

Flat Face
Drop Centre

Hemispherical
Ballistic

R28

36 – 51mm

Normal

Flat Face
Drop Centre

Hemispherical
Ballistic

R32

41 – 89mm

Normal
Retrac

Flat Face
Drop Centre

Hemispherical
Ballistic
Conical

R35

48 – 51mm

Normal
Retrac

Flat Face
Drop Centre

Hemispherical
Ballistic
Conical

R38

64 – 102mm

Normal
Retrac

Flat Face
Drop Centre

Hemispherical
Ballistic
Conical

T38

57 – 102mm

Normal
Retrac

Flat Face
Drop Centre

Hemispherical
Ballistic
Conical

T45

70 – 127mm

Normal
Retrac

Flat Face
Drop Centre

Hemispherical
Ballistic
Conical

T51

76 – 140mm

Normal
Retrac

Flat Face
Drop Centre

Hemispherical
Ballistic
Conical

T60

89 – 140mm

Normal
Retrac

Flat Face
Drop Centre

Hemispherical
Ballistic
Conical

ST58

89 – 140mm

Normal
Retrac

Flat Face
Drop Centre

Hemispherical
Ballistic
Conical

GT60

93 – 140mm

Normal
Retrac

Flat Face
Drop Centre

Hemispherical
Ballistic
Conical

ST68

102 – 152mm

Normal
Retrac

Flat Face
Drop Centre

Hemispherical
Ballistic
Conical

 

thread drilling bit from China T38 dia76mm

thread drilling bit from China T38 dia76mm

 

Company Profile:

CNBM is the largest state-owned enterprise in China building material & equipment industry. Up until October of 2011, our total assets exceeded RMB 190 billion, with 130,000 employees and over 300 subordinate companies. In the year 2012, we are ranked as No. 365 in World Top 500 Enterprises by Fortune, and No. 2 in global building materials industry, second only to Saint-Gobain.

thread drilling bit from China T38 dia76mm

thread drilling bit from China T38 dia76mm

thread drilling bit from China T38 dia76mm

FAQ:

1. Q: Can I get some samples?

A: We are honored to offer you samples for quality check.

2. Q: Do you have the products in stock?

A : Yes , We have sample for several models now could supply to you.

3. Q: What’s the delivery time?

A: It usually takes about 25 days to produce an order. But the exact delivery time might be different for different orders or at different time.

4. Q: Can I mix different models in one container?

A: Yes, different models can be mixed in one container, but the quantity of each model should not be less than MOQ.

5. Q: How does your factory do regarding quality control?

A: Quality is priority. Rock drilling tools workers always attach great importance to quality control from the every beginning to the end of the production. Every product will be fully assembled and carefully tested before it's packed for shipment.

6. Q: Will you deliver the right goods as ordered? How can I trust you?

A: Yes, we will. Our company is world top 500, that is the biggest supplier and manufacture in China, having a good reputation around the world.

7. Q: What's the payment you accept ?

A: As usual our payment is T/T, other payment can consider.

As the largest manufacturer and exporter of building materials in China, we avail ourselves of this opportunity to approach you for mutual-beneficial cooperation. If you want to know more, pls contact me freely.

Q:Relationship between pump pressure and bit pressure drop
The pump pressure is the total pressure loss of the circulation system, including the ground manifold, the internal pressure loss of the drill pipe, the annulus pressure consumption and the bit pressure drop. A pump is a machine that transports liquids or pumps liquids. It transfers mechanical energy or other external energy of the prime mover to the liquid, increasing the energy of the liquid. Pump is mainly used to transport water, oil, acid and alkali liquid, emulsion, suspension emulsion and liquid gold
Q:How do you drill a bit?
Less grinding, first of all, "do not rub", get the drill, that is, grinding, certainly blind grinding. This is a very important step to lay a solid foundation for grinding the next step only when you put a good position before sharpening. The teacher in the demonstration process, according to the methods and skills of practice summed up in simple formulas form explanation and demonstration, students often listen to understand, to do the normal operation demonstration, step by step action demonstration, slow motion model, so that the students easy to accept. Here the use of four formulas to guide the grinding process. Better effect.
Q:Why not hammer drill iron
The characteristics of the electric hammer drill:1, a good shock absorber system: allows the operator to hold comfort, relieve fatigue.The way to realize is realized by vibration control system;Through the soft handle increased comfort grip;2 、 accurate speed control switch: when the touch switch is lower, it can help the machine to drill smoothly (for example, drilling on the smooth surface of tile, not only prevents the drill from slipping, but also prevents the hole from breaking. High speed can be used during normal work to ensure efficiency.3, stable and reliable safety clutch: also known as the torque limiting clutch, avoid large torque during use due to seizure caused by the reaction of bit transfer to the user, this is a kind of safety protection of users. This feature also prevents the gears and motors from stopping rotating.
Q:What do you use for drilling walls?
The drill can drill metal wood, you want on the wall, cement, stone drilling should be used if the hammer, also called impact drill. The difference between an electric drill and an electric drill is that it has an impact when it is drilled. Its drill bit is not the same as the ordinary drill, and its drill is inlaid with alloy on the drill face.
Q:What drill holes are used to break the screw?
The metal, its principle is to discharge at the moment, a sharp change of arc temperature and with pressure, so that the metal material of the point immediately melted, gasification, splashed liquid and explosive, condensed into solid particles is the working fluid. At this time, the metal surface is etched into a pit, so EDM can be easily processed on any metal workpiece, so it is convenient and quick.
Q:What's the difference between a UC drill and an ST bit?
UC bit is used for high quality drilling, drilling temperature is low, less nail head, slag, broken rate phenomenon. Because of its low loss ratio, the drilling torque resistance is reduced, which is beneficial to micro drilling and more than 6 layers of PCB boards.
Q:Is the drill fast to feed, easy to break, or slow to feed, easy to break?
The drill bit is fast to slow to feed off constantly does not matter much, mainly is the workpiece to be fixed, fixed, easily broken drill bit is tilted, fast heating feed is not easy to burn a bit empty, but also from the new rules, the drill bit, drill feed uneconomical, slow hair less heat, drilling accuracy high
Q:When tapping M4, M5, M6, M8 and M10, how big bits of drill (ordinary steel) are used?
Extrusion tap:Screw - pitch: D=d1-0.49P P = 2. In the case of M10x1.5, hole size D=10-0.49 * 1.5=9.27. (recommendation 9.3)Screw - pitch: D=d1-0.42P P = 0.8. In the case of M3x0.5, hole size D=3-0.42 * 0.5=2.79. (recommendation 2.8)Therefore, cutting tap hole were recommended as follows: 3.3, 4.2, 5, 6.8, 8.5
Q:CNC machine tools I use 6.5 bit drilling out is 6.7, what method can be solved?
Hello, pore diameter of drill cutting drill drill slightly is a normal phenomenon. Because the drill bit has a certain length, and a twist, when rotating due to circumferential force will produce slightly swinging, thus affecting the processing size.
Q:M2.5 hit the bottom teeth with much bit
M2.5 is the diameter, you want to use this diameter to subtract the distance of the tooth, that is, the diameter of the drill. In the metric system, the distance of M2.5 is 0.45.

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