Anchoring Casing Bits

Rock Drilling Tools

Anchoring casing bits with hard metal inserts provide significantly stronger impact rock-breaking capability compared with welded carbide plate bits, resulting in faster penetration rates and higher drilling efficiency.
The extra-long round thread design effectively prevents separation between the casing bit and casing pipe as drilling depth increases. In addition, round threads offer superior torsional strength compared with square threads and similar thread forms.

Request a Quote

Downloads

Typical Applications

Foundation pits, ground reinforcement, slope stabilization, tunnel pipe roofing, and other anchoring support works.

Support works

Ground reinforcement

Technical Specifications

C, Mm	C, Inch	Outer Tube Diameter (D1), Mm	Inner rod diameter (D2), mm	D, mm	Thread (T), mm	Weight, kg	Product name
111	4 3/8	102	54	75	90	4	102 crown bit
127	5	114	54	89	102	4.1	114 crown bit
140	5 1/2	133	76	108	122	5.1	133 crown bit
152	6	146	76	120	134	6	146 crown bit
178	7	168	89	134	154	8.8	168 crown bit
191	7 1/2	178	89	134	154	8.8	178 crown bit
The standard thread configuration is left-hand thread.

Details

In applications such as ground reinforcement and slope stabilization, the formations are generally loose or soft. Therefore, pointed button inserts are used on anchoring casing bits to achieve faster penetration rates and improved drilling efficiency.

Related Products
Other Products

Drill Rigs Comprehensive mining equipment covering surface drill rigs and underground drill rigs for mining, tunneling and construction. Designed for high efficiency, safety and adaptability across diverse geological conditions and mining environments.

Air Compressors Air compressors designed for drilling, mining, and construction applications. Including portable diesel compressors, portable electric compressors, and stationary electric screw compressors, providing stable, efficient, and reliable air supply for various working conditions.

What is the function of an anchoring casing bit?

The casing bit serves two primary functions. First, it guides the drilling direction of the casing and the drilling tool system. Second, it performs reaming, allowing the casing pipe to follow smoothly into the borehole.

Which is more important, the casing bit or the drilling rod bit?

Both are critical components. While the drilling rod bit directly engages the main rock-breaking face, the auxiliary rock-breaking capability of the casing bit should not be underestimated. An improperly selected casing bit can significantly reduce overall drilling efficiency and may even prevent the entire system from advancing.