our shank adaptor can match some rock drill , it can be connect with Sandvik , Atlas Copco ,Boart ,Furukawa ,Ingersoll-Rand ,the thread we can provide R32 R38 T38 T45 T51 , We adapt to advanced material and production process and the whole body carburization to make sure the hard of the surface, it can improve the product's lifespan ,
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