305 381mm down the hole hammer drill bits

{"cid":"91096850","title":"DTH Hammer Reaming Bits Tungsten Carbide Inserts Oil Well Hole Opener Drill Bit","imgUrl":"https:\/\/img.chinax.com\/nimg\/44\/68\/636a517e7d0aa766918234937716-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"MIROC","Model Number":"DTH Bits","Minimum Order Quantity":"negotiation","Delivery Time":"15-20days","Certification":"SGS certified, ISO","Place of Origin":"China","Payment Terms":"T\/T, L\/C, D\/A, D\/P, Western Union","Supply Ability":"20000pcs per month","Packaging Details":"wooden box","Color:":"any color is available","Application:":"Mining","Shank type:":"DHD, Mission, SD, QL, NUMA etc","Hammer size":"3.5'', 4\", 5\", 6\", 8\", 10\", 12\"","Processing Type":"Casting","Application Range":"Hard,Very Hard and Medium","Product name":"DTH Drill Bit"}}

{"cid":"91212094","title":"305mm 12 Inch NUMA125 Dow The Hole DTH Drill Bit For Exploration Drilling","imgUrl":"https:\/\/img.chinax.com\/nimg\/e4\/e0\/9d0f1bac5cd43b60b122ab11678b-200x200-1.jpg","attrs":{"Price":"9-99999USD\/PC","Brand Name":"MING","Model Number":"MDNM125-305mm","Minimum Order Quantity":"1PC","Delivery Time":"3-5WEEKS","Certification":"ISO9001","Place of Origin":"CHINA","Payment Terms":"T\/T, D\/P, Western Union","Supply Ability":"2000PCS\/MONTH","Packaging Details":"WOODEN CASE","Processing type":"Forging","Machine type":"Downhole Tools","Use":"Quarry","Type":"Drill Bit","Material":"Tungsten Carbide & Steel","Color":"Blue,Golden,other Color Available,Blue And Yellow","Product name":"Factory Hot Selling DTH Drill Bits","Application":"Rock Drilling","Advantage":"High Performance Rock Drill Bit","Packing":"Wooden Case","Usage":"Hole Drilling","Face":"Flat \/ Convex \/ Concave","Standard":"ISO-9001","Key words":"Dth Bit","High Light":"305mm 12 Inch NUMA125 Dow The Hole Bit, DTH Drill Bit"}}

{"cid":"91182652","title":"12 Inch 305-381mm DTH Drill Bits for Mining Drilling with 130-187kg Weight and Concave Face Design","imgUrl":"https:\/\/img.chinax.com\/nimg\/99\/6a\/23fb95a6b38cadb77d7dee5ba0ac-200x200-1.jpg","attrs":{"Price":"$280-300","Brand Name":"SOLLROC","Minimum Order Quantity":"1","Place of Origin":"Hunan, China","Bit diameter":"305-381mm","Weight":"130-187kg","Flushing holes":"3-4","Gauge buttons":"3-4*32-48mm","Front buttons":"15-16*19mm","Button diameter":"16-19mm","Material":"Special steels, carbide","Manufacturing method":"CNC machines","Design":"Simple, reasonable","Air consumption":"Low","Drilling smoothness":"Smooth","Impact power":"Maximum","Penetration rate":"High","Packaging":"Carton+plywood case","Bit type":"SD12 concave face"}}