DTH Bits Rock hog DTH bits are designed and manufactured for superior penetration while maintaining maximum cleaning action at the face of the bit, thus extending the working life of the products. They are manufactured utilizing premium aircraft quality alloy steels coupled with rock hog's proprietary manufacturing and metal treatment processes, which allow for the longest possible product life. DTH Bit Information dth bit shank styles dth bit Face styles DTh Bit Head Sizes dth bit button styles Rock Ripper Series Technical Information Specialty Bits