118-358mm Overburden Odex Eccentric Drilling Casing System

118-358mm Overburden Odex Eccentric Drilling Casing System :

For more specifications, please contact us and accept the customized size;

	Model	Casing Tube O.D	Bit Diameter(Button Included)	Casing Shoe I.D	Maximum Reaming O.D	Hammer Style
	108	￠108	￠92	￠86	￠118	3
	114	￠114	￠100	￠94	￠124	3
	127	￠127	￠110	￠102	￠136	3-4
	146	￠146	￠124	￠117	￠156	4
	168	￠168	￠146	￠138	￠178	5
	178	￠178	￠156	￠148	￠193	5
	183	￠183	￠160	￠152	￠193	5
	194	￠194	￠178	￠167	￠208	6
	219	￠219	￠203	￠193	￠237	6-7
	245	￠245	￠220	￠210	￠260	6-8
	273	￠273	￠256	￠242	￠308	8
	325	￠325	￠297	￠285	￠355	8-10
	377	￠377	￠351	￠333	￠420	10-12

ODEX/Eccentric equipment enables you to drill and case deep holes simultaneouslyin all types of formation, even those with large boulders.

The method is based on a pilot bit and eccentric reamer, which together drill a hole slightly larger than the external diameter of the casing tube. This enables the casing tube to follow the drill bit down the hole.

When using ODEX, part of the impact energy is diverted to the casing tube via a shoulder on the guide device, which in turn impacts a special casing shoe at the lower end of the casing.

Why Choose HFD Down the hole bits ?

In the top hammer drilling tool manufacturing, we have world-class production technology, advanced production equipment, and experienced production technical staff. We have been working closely with our customers to conduct extensive on-site tests on various types of rocks and working conditions. Based on the feedback, we continue to improve and develop in various areas such as raw materials, heat treatment, design and manufacturing processes.

In terms of product consultation and rock tool services, we can select the most suitable rock drill tools and drilling construction schemes according to the user's construction conditions, rock type, mineral conditions and drilling equipment, so as to help users improve drilling efficiency, reduce drilling costs, and achieve better comprehensive benefits and higher labour productivity.

Our Down the hole bits have a good industry reputation in mining, tunnelling, quarrying, roads or construction due to their excellent wear resistance, roughening resistance and stability. Compared with many world-class brands of drilling tools, our rock drill tools are not inferior. In some field comparison tests, the use efficiency of our many products even exceeds that of world-class brands and has been highly recognized by customers.

Service & Support

Every purchase comes with round-the-clock after-sales service, support, and training to ensure customers get maximum productivity from their drilling operations. Having a knowledgeable and technical partner, on-site or online, can make the difference between going it alone and leveraging experience and expertise. Customers can rely on our service and support, which are provided by cost-effective and professional DTH drilling tool manufacturers. We know about downhole drilling!