119 144mm shroud diameter rc drill bit

{"cid":"91182652","title":"SRC545 121mm-146mm RC Drill Bit with 119-144mm Shroud Diameter and 1 Year Warranty for Well Drilling and Mining","imgUrl":"https:\/\/img.chinax.com\/nimg\/76\/43\/d1c065009dcc7514e8b26761da9b-200x200-1.jpg","attrs":{"Price":"$200","Brand Name":"SOLLROC","Minimum Order Quantity":"1","Place of Origin":"Hunan, China","Weight":"12 KG","Material":"Carburized steel","Processing Type":"Forging","Diameter":"121mm-146mm","Shroud diameter":"119-144mm","Face Shape":"Flat, convex, concave, drop center","Button type":"Spherical, Parabolic, Ballistic","Gauge button diameter":"8*14mm, 8*16mm","Center button diameter":"6*14mm+2*14mm, 6*14mm+3*14mm, 6*16mm+3*14mm","Recommended shroud diameter":"119-144mm","Bit head shape":"Various","Button configuration":"Customizable","Drilling method":"Dual Wall or Dual Tube Drilling","Air flow":"Down the annulus of the rod","Sample collection":"Via air hole on the bit head"}}