thread button bit from China R22, R25, R28, R32, R38, T38, T45, T51

thread button bit from China R22, R25, R28, R32, R38, T38, T45, T51 System 1

thread button bit from China R22, R25, R28, R32, R38, T38, T45, T51 System 2

thread button bit from China R22, R25, R28, R32, R38, T38, T45, T51

Ref Price:

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 tools，such 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 button bit from China R22, R25, R28, R32, R38, T38, T45, T51

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 button bit from China R22, R25, R28, R32, R38, T38, T45, T51

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 button bit from China R22, R25, R28, R32, R38, T38, T45, T51

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:Woodworking drills, classification, woodworking drills are those categories, the more specific the better: They are used to process large work holes, wooden structures, housing, furniture, and large holes in furniture.Ladder drill, usually in order to save time, with ladder drilling (non pagoda drill) drilled out, you can directly use countersunk head screw, to ensure that the center of the 2 round hole in a straight line.

Q:Do you have any special drill for aluminum alloy?: Twist drill grinding points need to pay attention to, first of all to ensure that the correct grinding angle. The two main cutting edge length and angle to symmetry, there is a formula: drill blade surface on the wheel. The drill shaft out of the front, left oblique angle. From the back edge grinding angle, swing up and down the tail don't tilt.If necessary, the cross edge can be repaired, and the trimming edge and the chip separation groove can be polished, and the blade should be cooled during the grinding process to avoid the edge annealing.

Q:What bit is better for drilling 304 stainless steel?: Drilling 304 stainless steel with an ordinary high-speed steel drill can be done, but note the requirementThe sharpening angle of the drill must not be less than 110 degreesThe angle of the drill should be symmetricalDon't be too sharp edge cutting is not easy.

Q:Sharpening of drill angle when machining different materials: For the sharpening of the drill, we should grind the drill at different angles according to the needs of the drilling. For example, a bit of drill bit drilled to a relatively hard material can grind larger (i.e. flat);

Q:How can the 1 millimeter drill be worn?: Less grinding, orifice in three edge or pentagon, look carefully, really half a certain degree of difficulty, teachers see the grinding action, do not blindly grinding, students often have yet to settle on the edge by grinding the start on the wheel, too large angle drill in drilling look, all kinds of grinding defects of twist drill. The students have not mastered the sharpening skills and techniques, according to the methods and skills of practice summed up in simple formulas form explanation and demonstration, students tend to understand, the other main blade drill was destroyed, is less grinding in better control of miss the point, size, angle of the diagram. Look calmly. And after sharpening the edge of the blade.

Q:Is there a standard for drilling errors due to machine tool shaking?: But the drill is drilled out of Kong Shizheng because the bit will wobble during drilling so that the drilled hole is out of turn.

Q:What kind of steel do you need to drill?!: Some use ion implantation technology to inject titanium, nitrogen and carbon into the substrate at a certain depth, which not only improves the hardness and strength, but also makes them move when the drill is regrinding. Also, a diamond film is formed at the top of the drill bit by physical means, which greatly improves the hardness and wear resistance of the drill bit. The hardness and strength of cemented carbide are not only related to the ratio of tungsten carbide to cobalt, but also to the particle of powder.

Q:What's the diameter of the PT3/8 internal thread drill?: Dia 14.3-14.4.PT is the old standard, and it is also written as BSPT. Now the new standard is Rc, the same.

Q:How big is the 6 bit that the worker says?: The default length units for machining and mechanical drawing are millimeters,

Q:What method should we pay attention to when drilling small holes and long holes in plain drills?: When the bit is drilling the deep hole, the peak angle of the drill must be flattened so that it can drain the cuttings. In addition, when drilling, it is necessary to raise the drill bit and clean the drill bits in time, so as to prevent the bit from being squeezed by the chip, so that the drill bit is broken. Don't add too much coolant when drilling deep holes.

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