| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| External drainage of brain ventricle using twist drill hole technique | Using device | True | Surgical drill | Inferred relationship | Some | 1 | 
| Craniostomy using twist drill | Using device | True | Surgical drill | Inferred relationship | Some | 1 | 
| Percutaneous drill biopsy of breast | Using device | False | Surgical drill | Inferred relationship | Some | 1 | 
| Percutaneous drill biopsy of breast | Using device | True | Surgical drill | Inferred relationship | Some | 1 | 
| Drill handpiece | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Surgical power tool attachment | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Drill | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Drilling system | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Line-powered dental drilling system | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Manual cranial perforator, fluted | Is a | True | Surgical drill | Inferred relationship | Some |  | 
| Dental drilling system attachment | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Pneumatic dental drilling system hose | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Dental laboratory drilling system motor | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Remotely-driven dental drilling system motor | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Instrument guard, reusable | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Foot-switch, electrical | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Surgical air cylinder | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Line-powered surgical power tool control unit | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Surgical power tool irrigation-control device | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Manual cranial perforator, flat | Is a | True | Surgical drill | Inferred relationship | Some |  | 
| Pneumatic dental drilling system handpiece coupler | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Line-powered dental drilling/sawing system handpiece | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Cranial hand drill, reusable | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Cranial hand drill, single-use | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Instrument guard, single-use | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Ligament reconstruction instrument set | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Surgical instrument sleeve, reusable | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Line-powered surgical power tool electrical connection cable | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Surgical power tool maintenance unit | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Surgical air pipeline system filter | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Surgical air pipeline regulator | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Foot-switch, pneumatic | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Surgical instrument sleeve, single-use | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Middle ear drill | Is a | True | Surgical drill | Inferred relationship | Some |  | 
| Dental drill extension | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Cranial hand drill extension | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Sacroiliac joint transarticular fixation/arthrodesis implantation kit | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Surgical power tool maintenance adaptor | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Dental drilling handpiece disinfection sleeve | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Spinal decompression cutter | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Dental drill | Is a | True | Surgical drill | Inferred relationship | Some |  | 
| Non-sterile fluted surgical drill, single-use | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Sterile fluted surgical drill | Is a | True | Surgical drill | Inferred relationship | Some |  | 
| Fingernail drilling device, manual | Is a | True | Surgical drill | Inferred relationship | Some |  | 
| Non-sterile fluted surgical drill, reusable | Is a | False | Surgical drill | Inferred relationship | Some |  | 
| Biopsy drill | Is a | True | Surgical drill | Inferred relationship | Some |  | 
| Cannulated surgical drill | Is a | True | Surgical drill | Inferred relationship | Some |  | 
| Fingernail drilling device, electric | Is a | True | Surgical drill | Inferred relationship | Some |  | 
| Crown surgical drill | Is a | True | Surgical drill | Inferred relationship | Some |  | 
| Fingernail drill | Is a | True | Surgical drill | Inferred relationship | Some |  | 
| Surgical hand drill | Is a | True | Surgical drill | Inferred relationship | Some |  |