Drill String Assembly
AssemblyThreaded rod sections connected end-to-end that transmit torque and axial loads from spindle to bit. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Drill String Assembly
4 top-level lines as of r136918| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Kelly Drive Rod | raise-borer-kelly-rod | 1× | 1 | · | part |
| 2 | Drill Pipe Extension Sections | raise-borer-extension-rods | 1× | 1 | · | part |
| 3 | Pilot Hole Bit | raise-borer-pilot-bit | 1× | 1 | · | part |
| 4 | Drill Pipe Protector Sleeve | raise-borer-rod-protector | 1× | 1 | · | part |