Bit Face Shape Selection:

1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.

2. Concave Face
The all-around application bit face specifically for medium hard and homogeneous rock formations.
Good hole deviation control and good flushing capacity.

3. Convex Face

For  high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce theload and wear on the gauge buttons, but poor hole deviation control.

4. Flat Face Bit

This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.

Carbide Button Shape Selection:
1. Semi-Ballistic Buttons
2. Ballistic Button
3. Spherical Button
4. Two-step Button

Our Advantages:
We have advanced production equipment & talented researchers & technicians & rich experiences in R & D and production.
We using the best quality raw materials.
We adopting advanced production technology & strict testing procedure.
We passed ISO9001 quality management system certification.
We accept OEM manufacturing and produce on your design.

Raw Material

Steel:
first class special alloy steel with high strength, heat resistance and wearable

Carbide
The best tungsten carbides from China are commonly applied.
Tungsten carbide from European is also available.

Specification

1.Steel Carbide
2.12 years experience
3.Can match to the original bit shank
4.Atlas quality

Company Introduction

WORLDRILL is located in Qingdao, Shandong, We have designed and manufactured the following products: the most advanced high air pressure DTH hammer in China, various kinds of DTH bits, eccentric drilling equipment for simultaneous drilling and casing through overburden and loose rock formations; various kinds of threaded drilling bits, shank adapters and coupling sleeves, all kinds of tool joints and drill pipes, and spare parts for drill rig.
Looking into the future, we are full of confidence. In the future, we WORLDRILL will offer more job opportunities and contribute more taxes, with which local government and local residents will be delighted; in the future, we WORLDRILL will be sure to compete with famous international brands of drilling tools so that China Drill Steel Association will be proud of WORLDRILL; in the future, we WORLDRILL is bound to offer superb products so that customers both from home and abroad feel happy at sight of our products and relieved when using them; in the future, we WORLDRILL will develop and step forward together with our suppliers and cooperating units to create a bright tomorrow; in the future, we WORLDRILL will be just like a school and army to become a group loving study, observing discipline and boasting strong fighting capacity, and a happy family; in this family, all employees enjoy happiness and good health; every time all friends caring about and supporting WORLDRILL talk about WORLDRILL, they are happy! “WORLDRILL, a long life” means that WORLDRILL products will have the longest service life so that users can achieve maximum benefit; the friendship between WORLDRILL and all the friends will be everlasting and unchanging; and WORLDRILL will last for hundred years and WORLDRILL spirit will be passed on from generation to generation.

1. Company Profile
 It has a complete set of equipment for producing rock drilling products and pneumatic tools. (The key equipment is the most advanced one in the world). Operated privately, our company is very famous, and is one of the biggest enterprises in China specializing in research and manufacture of rock drilling products and pneumatic tools. Our company is also the “Little Giant Industry” in Shandong and the high-tech enterprise which has passed the ISO9001:2016 international quality system certification in Shandong Province.

2. Products
With its abundant experience in research and production, using the highest quality raw materials, through advanced technology and rigorous testing methods, our company has produced products with excellent performance and quality. Our company mainly researches, designs and manufactures the following products: large diameter oil drilling hammers, high pressure DTH hammers (which are the most advanced products in the field in China), all kinds of DTH bits, eccentric drilling tools for drilling with casing in the cover rocks and loose rocks, all kinds of threaded bits, RC reverse circulation hammers and bits, shank adaptors and coupling sleeves, various kinds of tool joints and drill pipes, and spare parts for drilling, etc. The performance of these products is domestic leading and world first-class.

3. Advantages of New Products Compared with Products of Other Manufacturers
“WORLDRILL”,manufacturing drilling tools, is a leading brand in China, and the DTH Hammers without foot-valve are the most popular products in particular. Compared with  the DTH Hammers of the same specification with foot-valve, the advantages of DTH Hammers without foot-valve are as follows: 1. Higher impact frequency and faster drilling speed, with the speed being 15%-20% higher than the ones with foot-valve; 2. Lower air consumption and lower oil consumption, with 10% of the oil consumption saved; 3. Avoid the trouble of foot-valve fracture and expand when heated, or the contraction when cooled; 4. Fewer internal parts, simple in structure, long in service life, and easy to assemble and disassemble. The new type hammer has been well received by users since its launch. Hammering tests have been carried out on the hardest iron ore mine in China. Compared with the products from SANDVIK and ATLAS COPCO, the new type fast hammer produced by our company is about 10% faster in terms of speed. Besides, since the thickness of the external cylinder of the hammer from our company is increased, its service life is longer than others. As to bits, the quality of products provided by our company is comparable to those from the above mentioned two companies; in the meantime, the cost performance of drilling tools branded “WORLDRILL” is much higher than those branded SANDVIK and ATLAS COPCO.

4. Sale and Patent
“WORLDRILL” drilling tools own a good market all over China for the good quality and high performance. “WORLDRILL” products have been exported to more than 30 countries including America, France, Australia, Canada, Malaysia, Korea, etc. After the constant development of more than ten years, the “WORLDRILL” brand has become a well-known brand in domestic market and keeps a leading status in the industry. Its market share improves continually. Meanwhile, the company is still actively exploring overseas market, and the present product export rate has been up to 60%.
The high pressure DTH drilling tools manufactured by our company are based on independent research and design, and all of them have acquired national patents.
By the end of 2016, for drilling tools, our company had already owned one national patent:
Patent code: ZL200810143523.6, a reverse circulation hammer;
Six national utility patents as follows:
Patent code: ZL 2008 2 0159080.5, a reverse circulation hammer.
Patent code: ZL2008 2 0159081.X, a high pressure DTH hammer.
Patent code: ZL2008 2 0159082.4, an eccentric drilling tool.
Patent code: ZL2007 2 0064739.4, a speedy high pressure DTH hammer.
Patent code: ZL2009 2 0063350.7, a speedy high pressure DTH bit.
Patent code: ZL2009 2 0063351.1, a reverse circulation bit.