In wooden case, steel case or according to your requirement.
Chongqing, Guangdong, Shanghai
Within 7 to 30 days after your order
Hole opener rock drill bit for single cone cutter
The Hole Opener Advantage
1.Straighter Holes - By drilling a smaller hole with a "pilot" bit, then attaching that said bit onto the bottom of the the hole opener. The hole opener will follow the path of the hole drilled by the smaller bit.
2.Larger Holes with Smaller Rigs - By drilling a hole in stages, larger holes can be drilled with smaller rigs. A smaller hole requires less power.
3.Replacing Cutters and Cutting Cost - On most Hole Opener designs, the cutters can be easily replaced. The cost to replace a cutter is a fraction of the cost to replace a large tricone rock bit.
4.Cost of Large Rock Bits - Larger diameter rock bits not only cost a lot, they can be difficult to find. A more economic solution is to use a hole opener that uses smaller tricone rock bit segments.
5.Flexability - Hole Openers can be fabricated in just about any size, and can be configured to drill through any formation.
Hole opener drill bit 1. Hole openers are designed for the enlargement of pilot holes and large hole applications. They are also used for road and river crossing application. 2. The hole openers are manufactured from AISI 4145H fully heat-treated alloy steel. All are available with carbide-milled teeth and insert cutters. Arms and cutters are hardfaced for protection in three different designs for varying conditions and rock formations. The design of the hole opener allows for field-changing the cutters.
SL Series Pilot Reamer
28 30 32 36
711.2 762.0 812.8 914.4
517 537 117 127
Most favourable price and best quality
Packaging & Shipping
Packing:In wooden case , also be packaged according to customer requirements.
Shipping: We will issue the goods within 7 to 30 days after you place your order.
Chengdu rongwanda drilling equipment co., LTD is the largest domestic engaged in the diamond bit, bit one of the manufacture and sale of professional companies. Company adopts the world's cutting-edge design concepts and advanced manufacturing technology, design and manufacture of oil, natural gas drilling and comprehensive geological study of drilling, core and special-purpose of diamond bit and rock bit.
We are also exploring a broader overseas market.Following the fast development, our market ability will gradually improve, and the products will become great better to supply each customer,The corporation is persevered in high standards, strict requirements, and regards product quality as its life.
Q: What are your main products, and used for?
A: Our products include diamond bits, tricone bits and so on. Widely used in mineral exploration, geological drilling, geotechnical engineering, soil sampling etc.
Q: How do you control the quality?
A: Quality first. In order to guarantee high quality products, all our products are in strict accordance with ISO9001 international quality system and have to undergo a rigorous testing system before delivery.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: Min. Order?
A: Min. order quantity: 1 piece
Q:Do you provide samples?is it free or extra?
A:Yes,we could offer the sample with good price but not free,if the sample tested is ok, we can give you a good price for the further order.
Q: Where is your factory located in?
A: Our factory is located in Chengdu city, Sichuan province, China. Welcome to visit.