Werk-Brau's V-Line Rock Bucket is designed for excavating frozen ground or layered rock such as shale or caliche. The reverse V shaped design enables the machine to exert all of its force on all teeth at once to gain more surface area for ripping through strata. This is a severe duty model for heavier applications, involving tougher and more abrasive rock. These kinds of buckets can also be used for moderate prying.