1,passed ISO9001:2000 2,competitive price 3,have different types Drilling bucket1. Drilling bucket mainly includes: Drilling Bucket With One Cutting Edge, Centrifugal Buckets, DBLS Drilling Bucket With One Cutting Edge, DBLSF-K Rock Type Drilling Bucket With Collar ,STDL Double Start Rock Auger and so on2. Can be used to drilling water-bearing sandy soil,sandy gravel,cobble,and weathered soft ...