thread drilling bit from China for hardness rock max drilling
- 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.
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 | Hemispherical |
R25 | 33 – 57mm | Normal | Flat Face | Hemispherical |
R28 | 36 – 51mm | Normal | Flat Face | Hemispherical |
R32 | 41 – 89mm | Normal | Flat Face | Hemispherical |
R35 | 48 – 51mm | Normal | Flat Face | Hemispherical |
R38 | 64 – 102mm | Normal | Flat Face | Hemispherical |
T38 | 57 – 102mm | Normal | Flat Face | Hemispherical |
T45 | 70 – 127mm | Normal | Flat Face | Hemispherical |
T51 | 76 – 140mm | Normal | Flat Face | Hemispherical |
T60 | 89 – 140mm | Normal | Flat Face | Hemispherical |
ST58 | 89 – 140mm | Normal | Flat Face | Hemispherical |
GT60 | 93 – 140mm | Normal | Flat Face | Hemispherical |
ST68 | 102 – 152mm | Normal | Flat Face | Hemispherical |
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.
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?
- Standard angle has 118, 120, 130, 135, 140, processing material is different, drill top angle is not the same.
- Q: What are the differences between the center drill and the twist drill in its structure and use?
- The product has good cutting and good chip removal. The center drill has two types: type A: without supporting the center of the cone drill, B type: nursing center of the cone drill, machining center hole diameter of d=2~10mm, usually by supporting the center of the cone drill without (type A); process long, high precision workpiece, in order to avoid 60 degrees centering the cone is damaged, the general nursing center of the cone drill (type B).
- Q: Relationship between bit diameter and rotation speed
- If the bit is drilled at a low velocity, the drilling efficiency will be low due to the low line speed, and the drill bit will be easily broken due to the small size and the small strength of the drill bit. But because the bit in drilling, large diameter, high speed, line speed will be very high, the bit will be very easy to damage on sticky steel drill.
- Q: What is the standard angle of the drill bit?
- For example, HSS high-speed steel drill bit: vertex angle is generally 118 degrees, sometimes greater than 130 degrees; sharp blade; accuracy (blade height difference, symmetry, jitter) requirements are relatively low. There are many ways to correct the transverse blade. Hole roughing and less demanding, we generally use more. HM carbide drills: the top angle is generally 140 degrees; straight fluted drills are usually 130 degrees; and three edge drills are usually 150 degrees. The blade and nose (edge) are not sharp, often passivated, or inverted blade and chamfering, and require high accuracy. The horizontal edge is often into a S- shape, in favor of chip breaking
- Q: M6 threads need to drill much bottom?
- A spiral shaped continuous raised part having a specified cross section on the surface of a cylinder or cone. According to its parent thread shape is divided into cylindrical and conical screw threads; according to their position in the matrix is divided into outer and inner thread, according to the section shape (teeth) divided into triangular thread, rectangular screw, trapezoidal thread, serrated thread and other special shape screw.
- Q: What drill is used in stainless iron drilling?. What color?
- The best is to make the stainless steel material of cobalt containing material with high speed steel drill, high-speed steel drill is cobalt containing silver, do not know the landlord of the silver white bit is not high speed steel containing cobalt, if not, you can buy only high speed steel cobaltiferous material drill (also called stainless steel special under the best bit), buy imported, not much of your money, the quality difference is too large domestic drill. Or if not, can change the drill bit Ti, Ti is abrasion resistant, ordinary life is 3 times more than the standard twist drill]
- Q: Specification of plastic expansion plug and collocation of drill bits
- For domestic expansion parts, there is no size standard, so there is no way to tell you how many sizes. Plastic expansion pipe, to measure its body diameter (regardless of some special products, such as some foreign use, there will be a large part of the stay outside), due to the expansion strength of plastic parts, and the product itself is relatively small, so with the same size a bit, and not boring a bias is too large, so as not to affect the aperture.
- Q: Why do you always burn drills?
- The drill is so small, but the depth is very shallow, so this speed can be, the knife can be calculated in accordance with the formula, appropriate to adjust the actual situation of cutting. I believe it will help you.
- Q: What causes the drill bit to break at the end of the hole?
- The cutting edge angle is not proper, and the iron chip blockage causes the resistance to increase.1) and the principle of uniform, when the edge angle is not appropriate, the drill operation must not only overcome the cutting resistance, but also overcome iron friction and pore wall blocking resistance, resistance and greater than two fold twist drill strength, also can cause the drill bit break.
- Q: What is the drill bit of the percussion drill, please?!
- Used of natural stones or concrete. The impact of drilling work in a drill chuck adjustment knob, adjustable normal electric drills and impact drills in two ways. But the impact of drilling is the use of internal gear to achieve mutual beat of impact, but the impact is far less than the hammer. It is not suitable for reinforced concrete drill.
Send your message to us
thread drilling bit from China for hardness rock max drilling
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 pc
- Supply Capability:
- 10000 pc/month
OKorder Service Pledge
OKorder Financial Service
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