4 1 4 hollow stem auger drilling system

{"cid":"91121595","title":"Hollow Stem Auger Drilling Used To Groundwater Monitoring Wells","imgUrl":"https:\/\/img.chinax.com\/nimg\/25\/72\/59eaeae84ae4f0220fb83c4e0703-200x200-1.jpg","attrs":{"Price":"Negotiate","Brand Name":"ROSCHEN","Model Number":"600-2500mm drilling diameter","Minimum Order Quantity":"1 ~ 5 pcs","Certification":"ISO","Place of Origin":"CHINA","Supply Ability":"100000 pcs","Packaging Details":"Bundles","Name":"Hollow Stem Augers","Bolt":"HARDFACED LOCKBOLT","Head":"Cutterheads","Machine":"Kelly drilling rig","Connection":"HEX SHANK CONNECTION","Cap":"DRIVE CAP","Subs":"ROD TO CAP ADAPTER","Nut":"ROD BOLT AND NUT","Inner Tube":"CENTER ROD","Bits":"PILOT BIT","Sampling":"Split Spoon Sampling","Sampler":"SPT Sampler Complete","Item":"SPT Split Tube Sampler","Model No":"Octagonal Hollow Stem Auger","Applications":"Used For Geotechnical Applications","Equipment":"Automatic Trip Hammer","Model":"Standard Penetration Test Sampler","Rods":"SPT Drive Rods"}}