Sollroc DHD340 Drill Bits

with or without footvalve is up to you.

DTH Drill Bits are produced from premium quality alloy steel for increased durability and wear characteristics. Specific heat treatment standards and special “stress relief” processes ensure consistent performance. DTH hammer bits are designed for maximum performance and hole cleaning ability and high penetration rate. Sollroc can supply DTH hammers and bit from 2"-18" for shank type DHD, SD, QL, Mission, Numa, etc. It has the advantage of high flatness, smooth hole wall, high rigid of drill rod and hammer, independent of high axial thrust, no limit of drilling depth, low cost of devices and easiness to maintain. At the drilling hole of dia.105mm-dia.254mm, a plenty of the DTH drilling tools are used.