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:Cobalt containing special stainless steel drill bit, 4mm angle, do not move?: The characteristics of stainless steel is high toughness, easy to stick a knife. So the drill hardness is high, surface finish better than ordinary bits, the bit angle large (130--135 degrees). At the same time to the full amount of feed and cooling. More than 0.15mm as much as possible without cutting in cold hardened layer. The cutting speed is as low as possible to reduce the cutting temperature. The cutting fluid is made of concentrated emulsions. Commonly used stainless steel drills are: high cobalt bit (M35 bit, M42 bit), in which the M42 bit is the most cost-effective, and carbide drills are also available.

Q:What is a two center drill? What's the function?: There are two drill centers, one for passing through the bushing and one for reaming the center of diameter (the center line coincides with the center of the drill string)

Q:Specification of plastic expansion plug and collocation of drill bits: General use of drilling bit is slightly smaller than the expansion plug specifications, with 3.8 4 mm drill bit expansion plug can. If is the same specifications for concrete especially hard objects, if a bit drilling specifications, pulling the hammer a little shake.

Q:How do you determine the speed of the drill? Is there any standard?: The diameter of 2mm twenty thousand to 40mm 32 is mainly to see the diameter of iron chip is not sent out only primary coke is not a piece of burning speed is too high to slow down a block that feed enough that need grinding head shaking feed you attached to a long amount of iron is the thickness of it feed processing when you need cooling water;

Q:What size of drill should we use to drill 10 holes?: The use of impact drill or hammer is generally used with 8MM drill, impact drill or hammer is by shock opening principle, always maintain a bit gap state, the gap is about 2MM, and the 8MM bit size, to meet the size of diameter 10MM! If a drill is used to open holes in wood or other plates, a 10MM drill can be used without the drill bit error...

Q:Angle action and characteristics of standard twist drill: The main deviation angle is RM, and the main angle is the angle between the tangent of the main cutting edge and the feed direction of the m. The base surface of the twist drill is the plane at which the main cutting edge is selected, including the axis of the drill bit. The bit is not the main cutting edge through the axis line, so each point on the cutting edge of different base, the main angle points are also different. When the angle of grinding, the main angle can be determined. The main deflection angle and the vertex angle are two different concepts.

Q:By drilling with a bit, why is the hole drilled straight 2 larger than the diameter of the drill?: Equipment: drill precision, bearing wear and drill card precision drill conical burr speed selectionThe lateral and lateral deflection of the bit and the size of the back angleDrilling can only be used for fastening, for mating, for boring, for reaming

Q:What do you mean by 5 times diameter drill?: The meaning of 5 times diameter drill:Drill depth is 5 times the diameter of the drill bit.Double diameter refers to how many times the diameter of the meaning, mainly refers to the length of the drill bit and bore ratio, is to measure the function of the drill an important indicator, that is, the larger the diameter, the greater the depth of drilling.

Q:How do I take out an electric drill bit?: Impact drill: the impact drill upside down on the ground (bit up), hold down the left hand down the root of the drill drill sleeve, the right hand holding the drill bit upward, provided when rotating around a bit can be taken out.

Q:The maximum diameter of the hammer is fixed up? Can I open the hole? How does an electric drill screw in? How big is the drill bit?: Hammer of different sizes have different maximum diameter of the drill bit.

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