Product name: 345mm MRS280 Overburden Casing Drilling System Bit For Quarry,Construction,Mining,Water Well Drilling
OD of casing pipe: 280mm

They are designed for economic cost of drilling in simultaneous casing advancement. The wings are retracted by reverse rotation.

Choose our MRS Overburden Casing Drilling System Bit and experience the difference that quality, expertise, and personalized service can make. Don't compromise on your drilling needs – invest in reliability and efficiency.

Product components:
1. Pilot bit+3PCS wiggle wings+casing shoe
2. Pilot bit+4PCS wiggle wings+casing shoe

Production details:

How to order:
Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style

Other size of MRS system is available upon customer's request

RFQ:
1. What is odex drilling?
ODEX is an adaptation of the air-operated down-the-hole hammer. It uses a swing-out eccentric bit to ream the bottom of the casing. Cuttings blow up through the drive sub and casing annulus to a swivel conducting them to a sample collector or onto the ground. Rapid removal of cuttings.

2. How much PSI do I need for air tools?
between 70 and 90 PSI
Most air tools require between 70 and 90 PSI. Any light-to-medium-duty air compressor can easily handle 90 PSI, but you always want the compressor to supply more flow than needed. Pro Tip: Always respect a PSI rating. If you don't supply enough air volume, the tool won't operate correctly.

3. How does a casing advancer Work?
The Casing Advancer has been designed to allow drilling and casing to be carried out at the same time as one integral operation. This feature eliminates the need to drill the large diameter hole with a Rock Bit, pull the drill rod string and Rock Bit from the hole and then ream the casing back into the hole.

Products Manufacturing:

Wuhan Kingdrilling Diamond CO., LTD, located in Wuhan East Lake High-tech Development Zone, is one of the most professional private enterprise specialized in researching and producing ODEX casing drilling system, symmetric casing drilling system, DTH hammer, DTH drill bits, Thread bits, Shank adapter, Drilling rods, Coal mining tools, Coupling sleeve, Anchoring and so on.

Relying on the university resources and talent advantages in Optical Valley region, combining with multiple laboratories in universities, we focused on developing the newest products system.

We produce DTH drilling tools with advanced technology from Britain, a completed manufacturing system has been formed in plant. The company is equipped with advanced production facilities including electron-hydraulic forging hammer, multipurpose furnace heat treatment production line, high performance CNC machines, all processes from raw materials prepared, forging, heat treatment, metal processing are completed in the factory. Strict quality control standards make sure stable quality.

Whatever in construction, engineering, piling, waterwell drilling, tunnelling, mining, quarrying or horizontal drilling industry. KINGDRILLING will always do the best to meet your demands. "Kingdrilling, Keep On Striving",  we’ll always be in this line to serve our customers the most reliable products and the best support.