DTH Symmetric Overburden Casing Drilling Tools Drill Bit with Casing Shoe

DTH Symmetric Overburden Casing Drilling Tools with Casing ShoeProduct specifications: Concentric/Symmetric Casing overburden Drilling System with Ring Bit  Casing TubeOD(mm)Casing TubeID(mm)Reamed Dia(mm)Casing ShoeID(mm)Polit bitDia(mm)HammerTypeDrill Pipe(mm)108951188070DHD3.5/QL30761141011289080DHD3.5/QL307612711414110090DHD3.5/QL307614012415411098DHD340/QL4076146126160114102DHD340/QL4076168148182132120DHD350/QL5076/89178158192142130DHD350/QL5076/89183163198152138DHD350/QL5089/114194174210164148DHD360/QL6089/114219199235184170DHD360/QL6089/114245225261210192DHD380/QL80114273253293238219DHD380/QL80114/127325305348294270SD10/NUMA100127406382426374350SD12/NUMA125140 The Concentric/Symmetric casing system product line includes the enhanced system with striking faces and extracting highly resistant.In horizontal drilling, the friction between the soil and the casing can become very important and Symmetrix reinforced bits are designed to resist abrasion under these conditions.These systems are targeted for drilling in leading which the cutting ring is recovered for reuse. They can also be used for drilling deep holes vertical when it is not necessary to use an inside diameter of annular cutting important.Reinforced systems are available for tubing sizes ranging between 140 mm and 1220 mm (5 1/ 2 "and 48").Quality warrantyOur products are made of high quality steel and all spares parts are inspected strictly before shipping. Production timewithin 15-25 days after receiving the advance payment or full payment.Transportationaccording to your requests.PackageThe material of packing is ply-wooden cases and pallet to avoid the damage in transportation./* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1