Lost Insert on a piling roller bit is one typical problem, but not that frequently appear.  We have mentioned this on the previous post “7

With working with our most professional client, traveling to operation field, FIRMTECH team found out one of the most common issue which lead to bore

In our long term working at our client operation site,  we found there are 7 most common piling roller bit failure as follow: Bearing Stuck

A good welded piling roller bit core barrel should reach the below standard: Right angle roller bit all roller bit placed in one circle all

We all know how trick it can be when comes to use a Core Barrel Roller Bit. Using roller bit is not like using the