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.
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: What are the differences between the center drill and the twist drill in its structure and use?
- Center drill: prefabricated, precise positioning for hole processing and central hole machining on end faces of shafts and shafts. Guide the twist drill to reduce the error.
- Q: M3 threaded hole. The bottom should choose large diameter drill bit
- The thread hole M3, bottom diameter of drill processing is required to choose:M3 takes 0.5 of the coarse thread, with a diameter of 2.5 bit.M3 takes 0.35 of fine thread, with a drill of 2.65 in diameter.
- 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: How to recognize the quality of twist drills?
- Then the heat treatment: you can simply judge the surface texture of the drill with the naked eye, which shows the good heat treatment, and the worse the contrast. Especially the black drill, some heat treatment is not in place, and black treatment is used to cover the burn of the drill. Production of the giant black diamond quality is stable, the small factory to keep in mind the black diamond.
- Q: Can HSS drill bits be drilled into stainless steel?
- No, we should use alloy drill bit, drill vertex angle to 135 degrees, you can use the drill grinding machine repair grinding, our company is using Dongguan Muller machine drill grinding machine, grinding effect is good.
- Q: What is countersunk drill, flat head drill?
- The traditional processing method is to use the normal size and low hole drill out in shallow hole with a suitable flat drill out above or to the appropriate size hole cutter width! Now progress to this two processing into a processing!.
- 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: Deep hole refers to the diameter of drill bits more than times, called deep hole
- Gun drill: only one cutting part, which was first used to process barrels. During drilling, the cutting fluid enters from the middle of the drill pipe and is injected into the cutting area through a small hole in the head of the drill bit and then removed from the V groove of the drill bit with the chip. The gun drill is suitable for deep holes with a bore diameter of 2~20 mm and a ratio of Kong Shen to aperture greater than 100. BTA deep hole drilling: the cutting fluid is fed from the gap between the drill pipe and the hole wall, and the cuttings are expelled from the inner hole of the drill pipe by the pressure of the cutting fluid. BTA deep hole drilling is suitable for drilling more than 6 mm hole diameter, hole depth and aperture ratio of less than 100 of the deep hole, and its production efficiency is more than 3 times higher than the gun drilling. The jet drilling: a multi edge deep hole drilling, inside and outside two layer drill pipe, most cutting fluid from inside and outside the drill pipe into the cutting area gap, and then together with the inner tube into the chip; the crescent hole and a small portion of the cutting fluid through the inner tube into the tail end of the inner tube jet formation, effect, low pressure area, help suction chip. The jet drilling does not require a strict cutting fluid seal. It is suitable for drilling deep holes with a diameter of more than 18 mm, Kong Shen and a bore ratio of less than 100.
- Q: How big is the smallest bit?
- Foreign trade HSS full grinding high speed steel straight shank twist drill, drill aluminum iron special twist drill / woodworking drill bit, relevant parameters:Model: YD0.5--14mm;Straight shank twist drill;Material: high speed steel;Blade diameter: manifold;Machine tools, tools, drills.
- 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.
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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
OKorder Service Pledge
OKorder Financial Service
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