Min. Order Reference FOB Price
1 Set US$500.00-6,000.00 / Set
Product Description
DTH Hammer Drilling Overburden Symmetric Casing Concentric Pilot Bit and Ring Bit with Casing Shoe Product specifications: Concentric/Symmetric Casing overburden Drilling System with Ring Bit Casing Tube OD(mm) Casing Tube ID(mm) Reamed Dia(mm) Casing Shoe ID(mm) Polit bit Dia(mm) ...