thread drilling bit from China R32 T38 T45 T51

thread drilling bit from China R32 T38 T45 T51 System 1

thread drilling bit from China R32 T38 T45 T51 System 2

thread drilling bit from China R32 T38 T45 T51

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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 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 drilling bit from China R32 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 drilling bit from China R32 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 drilling bit from China R32 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: Why is the drill angle 118 degrees?: It is the projection angle of the two main cutting edges in the middle section. The smaller the vertex angle is, the longer the main cutting edge is, the load on the cutting edge of the unit decreases, and the axial force decreases, which has a strong axial stability to the bit. And the knife edge at the outer circle is increased, which is beneficial to dissipate heat and improve the durability of the cutter.

Q: Relationship between bit diameter and rotation speed: Secondly, it is related to the grinding, feed size, material and so on. Such as: stainless steel drilling, the drill speed and feed volume should not be too large, the need for flexible use.

Q: Bit grinding, hair and technical requirements: There is now a knife grinding machine YN-01A+ drill grinding machine grinding twist drill on the market, SG fast drilling, DG long short blade edge deep hole drilling, in the processing of 3D within the hole, the ordinary twist drill into fast drilling, without positioning, direct drilling, hole position accuracy and the efficiency on the use of ultra fast; DG to the mill, if it is less than 10D or above according to the processing of materials and machine tools and other site by cutting and grinding method when less than 3D above 5D; worn by YN-01A+ zzm-a drill bit to meet the basic situation the essence of drill bit efficiency 2-3 times, the service life of the drill bit can provide 3-5 times; this machine operation is simple and fast, without experience in technology, one minute can grind a bit.

Q: Who can do this? Put the drill into it: The method of assembling drill bits is incorrect. The easiest way is to clamp the hammer hammer down the legs, with the left index finger on four set head forward, pointing to the direction of the motor to pull the thumb and ring sleeve. Take the drill with your right hand

Q: How to recognize the quality of twist drills?: In addition, there are also listening to the sound, knocking glass, using a grinding machine to play sparks, see color, etc.. These need experience, like picking watermelon, each has its own coup, different varieties, methods are also quite different. Usually, the more crisp we are, the more glass we have, the slightest spark, and the more red the spark, the better the bit material.

Q: What size of drill should we use to drill 10 holes?: Use Phi 10 bit. Use drill chuck quality is good (without obvious shaking) electric drill hole, no margin problem.

Q: Twist drill 200mm deep bore, what does the drill grind?: A standard twist drill is a very common drill tool. The utility model has the advantages of simple structure and convenient sharpening, but the grinding method is really good, and the method and the skill of grinding are well mastered. Factories also have such a situation, the work of more than ten years of workers, grinding well, twist drill also quite a lot. What is the reason for this? The key is methods and techniques. If the method is mastered, the problem will be solved.

Q: How do you drill a drill?: 6, after grinding, the drill rotation, simulation, drilling, cutting the status of inspection, to see if there is no wrong place, if there is further grinding;7, grinding the cross edge, that is, symmetrical sharpening drill bit after the blade;The 8 big bits can be sharpened by grinding on the side of the grinding wheel;9, steel bad twist drill, the vertex angle can be properly worn. .

Q: What brand of drill iron?: There are many kinds of drill bits, mainly based on their different uses, which is what to drill and what kind of drill bits to use.

Q: Why not hammer drill iron: Electric hammer drill (electric hammer drill), is the "two function drill" and "hammer" handheld electric tool, "rotary cutting drill", with the impact of the impact mechanism of driving impact drill bit, drill driven in rotation at the same time, there is a direction perpendicular to the rotation of the rotary drill the reciprocating motion of the hammer. For concrete, brick, tile, marble and other materials drilling. "Hammer" to drive the impact force of drill rod, used for concrete, bricks and other materials on the slotting, holes or broken concrete etc..

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