Geological Drill for concrete and stone

Single-tube Core Bit Of Sintering
Product Description:
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 ·available in all standard drilling sizes (A,B,N,P,H), Specailly waterways design
·very Fast cutting with very long working life. 
·Size can be done as your requests

.Our bit size(mm): Φ56, Φ59,Φ75,Φ76,Φ91,Φ110,Φ130,Φ150,Φ172,Φ220;

.have different bond in each for different stratigraphic distribution.

It is suit for engineering exploration and geological survey field. Our construction team have been research and development
by practice many years.