The Kingdrilling MRING Overburden Drilling System features a 114mm single-use symmetric casing drilling bit designed specifically for waterwell drilling applications. This advanced system utilizes a ring bit that is not connected to the casing shoe, allowing special profile DTH bits to pass through the large inner diameter for efficient drilling operations.

To place an order, please provide the following specifications:

• Casing Tube OD & ID dimensions
• Ring Bit Diameter requirements
• Hammer Shank type
• Maximal Normal Bit Diameter
• Casings and Casing Shoes Installation Method (including thread standards if applicable)

Custom MRING system sizes are available upon customer request to meet specific project requirements.

Overburden pressure refers to the geological pressure caused by the weight of overlying material layers at specific depths. In mining applications, overburden represents the material above economically exploitable resources that must be drilled through to reach target formations.

Cable percussion drilling enables casing installation within boreholes to prevent soil collapse, allowing deep drilling operations while maintaining structural integrity and drilling progress.