screwdriver
Enable an AI agent to recognise a screwdriver, assess its fitness for a particular screw and task, and decide how it may be used, maintained or withdrawn from use.
Bundle → Layer → Finding → Questions Filled
6 bundles · 11 layers · 18 findings · 28 questions
Screwdriver identity Establish what screwdriver is present and which assembly is being assessed.
Tool boundary
Identify the intended driving function and the limits of this model.
Manual screw-driving identity
Record evidence that the object is an assembled tool intended to turn screws through a manually driven tip.
- What observed features or product identification establish this as a hand-operated screwdriver? definition
- Does this instance require a boundary decision with a hex key, nut driver, powered driver or loose bit? boundary
Assembled configuration
Identify the parts that determine the screwdriver's current capability.
Current driving assembly
Record whether the tip is integral or replaceable and identify fitted bits, holders and extensions.
- Which tip, bit, holder and extension currently form the torque path? definition
- Which markings or records identify the handle assembly and fitted components? provenance
Screw engagement Represent whether the working end matches and seats in a particular screw.
Profile and size
Describe the tip using its own profile and sizing convention.
Tip identification
Record the drive profile and size, separating observed geometry from markings and inferred identifications.
- What drive profile and size are marked or otherwise established for this tip? definition
- Which working-end dimensions must be measured if the designation is absent or ambiguous? measurement
Seating and access
Assess engagement in the target screw and clearance around it.
Target screw fit
Record seating, interference and available alignment for the proposed screw-driving task.
- Does the tip seat in the target drive feature without obstruction or evident profile mismatch? measurement
- Do the shaft reach and surrounding clearance permit the required alignment and handle movement? boundary
Manual drive control Describe how the operator's movement and torque reach the screw.
Drive path
Assess the handle-to-tip connection and available direction modes.
Rotation transmission
Record how the screwdriver transmits rotation and whether its selected mechanism functions as intended.
- Is the drive direct or ratcheting, and what direction or lock mode is currently selected? definition
- Does an appropriate functional check reveal unintended slipping, binding or lost engagement? measurement
Torque control
Distinguish ordinary manual driving from documented torque-limiting or indicating capability.
Torque-task capability
Record any torque-control mechanism, its usable range, setting and evidence of verification.
- What documentation establishes the tool's torque-control range and current verification status, if applicable? provenance
- Can the required task torque be controlled or verified with this screwdriver and its current setting? action
Driving condition Capture defects that affect screw engagement or the integrity of the assembled tool.
Working-end integrity
Assess the surfaces that contact the screw.
Tip wear and damage
Record rounding, chips, deformation and deposits that may compromise seating or torque transfer.
- What wear, damage or contamination is visible on the screw-contacting surfaces? measurement
- Does the observed condition warrant cleaning, bit replacement or withdrawal under the applicable instructions? action
Assembly integrity
Assess the supporting structure and detachable connections.
Handle, shaft and retention
Record cracks, bending, looseness and failure to retain fitted components.
- Are the handle, shaft and their connection damaged, bent or loose? measurement
- Does the bit or extension remain secured by its intended retention mechanism during an appropriate check? measurement
Permitted screwdriving Connect the screwdriver's documented capabilities and observed condition to a proposed action.
Special-use evidence
Record evidence for capabilities that cannot be inferred from shape or colour.
Documented use limits
Tie insulation, striking and other special-use claims to identifiable instructions and the actual tool configuration.
- What markings and documentation support any claimed electrical-insulation or striking capability for this screwdriver? provenance
- Do the fitted components and observed condition satisfy the documented conditions of that claim? boundary
Task decision
Determine the next action from fit, function, condition and relevant task requirements.
Use, change or withdraw
Record a task-specific suitability decision and any unresolved evidence needed before use.
- For the proposed screw-driving task, should this screwdriver be used as configured, reconfigured or replaced? action
- What observed change, such as repeated slipping or a loose bit, requires stopping and reassessing the tool? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Kinds and varieties
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these kinds and varieties hold for the sense of screwdriver this model covers, and on what evidence? provenance
Identifiers and schemes
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these identifiers and schemes hold for the sense of screwdriver this model covers, and on what evidence? provenance
Standards and regulation
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these standards and regulation hold for the sense of screwdriver this model covers, and on what evidence? provenance
Real-world use
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these real-world use hold for the sense of screwdriver this model covers, and on what evidence? provenance
Typical measurements
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these typical measurements hold for the sense of screwdriver this model covers, and on what evidence? provenance
Failure modes and hazards
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these failure modes and hazards hold for the sense of screwdriver this model covers, and on what evidence? provenance
Regional variation
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these regional variation hold for the sense of screwdriver this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of screwdriver this model covers, and on what evidence? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.OBJ
- Other names and narrower kinds
- DeWalt DW268, DeWalt DW257, DeWalt DW272, Hitachi W6V3, screwdriver bit, torque screwdriver, Yankee screwdriver, Tester screwdriver
What it is Filled
A screwdriver is an assembled hand-operated torque-transmitting tool whose fixed tip or currently fitted interchangeable bit is sized and profiled to mate with a matching slot or recess in a screw head so the fastener can be driven or extracted by rotation rather than by gripping the screw body.
In scope
- The assembled screwdriver and its currently fitted tip or bit
- Drive profile, tip size and access geometry
- Handle, shaft and manual torque-transmission mechanisms
- Wear, damage, bit retention and functional condition
- Task-specific suitability and documented use restrictions
Out of scope
- Screw identity, thread geometry and fastener condition beyond their interface with the screwdriver
- Joint design, tightening requirements and assembly acceptance criteria
- Motor-powered screwdrivers and drill-drivers
- Loose-bit inventories and bit manufacturing specifications
- Electrical installation state and workplace hazard assessment
Why it exists Filled
Enable an AI agent to recognise a screwdriver, assess its fitness for a particular screw and task, and decide how it may be used, maintained or withdrawn from use.
Distinguishing features Filled
- Its working end engages a screw-head drive feature to transmit rotation, rather than gripping the outside of a nut or bolt.
- The assembled tool provides a hand-operated path from a handle to a screw-engaging tip; a loose bit alone lacks that assembly.
- Its intended driving action is rotation through the tip, distinguishing it from an awl, punch or chisel despite possible similarities in outline.
- The operator supplies the driving torque manually, distinguishing the scoped tool from a motor-powered screwdriver.
- For a disputed hex or socket form, identification requires checking the tool's declared type and registry boundary rather than relying only on its ability to turn a screw.
What robots and AI may and may not do Filled
Must not
- Use a non-insulated screwdriver on live electrical parts.
- Use a screwdriver as a pry bar, chisel or punch.
- Open devices or enclosures it is not authorized to open.
- Point a screwdriver or hand at the work in the path of a slip.
Only with a human decision
- Working on mains or other live installations.
May
- Drive and remove screws with the matching tip, at the torque the job specifies.
- Check tips for wear and report damaged tools.
Moral aspects Filled
- Slips and misuse of hand tools cause common hand and eye injuries.
Who is affected
- Users
- People nearby
- Owners of the equipment worked on
Owners Filled
Steward
The person or employer who owns it.
Links to other meta-models Filled
parent
- Q2578402 - registry parent class
- Q39546 - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.screwdriver
- Wikidata: Q161071 (https://www.wikidata.org/wiki/Q161071)
Direct properties required Filled
- Tool configuration: fixed-tip | interchangeable-bit | other documented configuration | unknown
- Drive profile: Recorded profile designation, such as slotted, Phillips, Pozidriv, Torx or hex; unknown permitted
- Tip size designation: Profile-specific size marking or designation, with its designation system
- Working-end dimensions: mm, with the measured feature identified
- Reach and access envelope: mm for usable reach, shaft diameter and handle clearance dimensions
- Installed bit: Reference to fitted bit, integral tip, no bit fitted or unknown
- Torque-transmission mode: direct | ratchet clockwise | ratchet counterclockwise | ratchet locked | other | unknown
- Torque-control setting: N·m with documented range and verification status; not applicable or unknown
- Working-end condition: Observed wear, rounding, chipping, bending or contamination, with assessment date
- Structural and retention condition: Observed handle, shaft, connection and bit-retention condition; unassessed permitted
- Documented special-use rating: Reference to applicable manufacturer instructions, markings or certification evidence; none recorded
Recognition required Filled
- A handle with a metal shaft ending in a flat, cross or other shaped tip.
- Insulated versions have a coated shaft and a voltage marking.
Capabilities and actions required Filled
- Match the fitted tip to a target screw's drive profile, size and access constraints.
- Turn a compatible screw manually within the tool's documented limits.
- Change and secure a compatible bit on an interchangeable-bit screwdriver.
- Select an available ratchet direction or torque-control setting.
- Inspect, clean and reassess the tip, handle, shaft and retention mechanism.
- Withdraw the screwdriver from a task when damage, mismatch or missing evidence prevents a suitability judgment.
Hazards and failure modes required Filled
- Tip slipping out and injuring the hand.
- Electric shock when used on live parts.
- Stripped screw heads from the wrong tip size.
Standards and interfaces required Filled
- IEC 60900, Live working - Hand tools for use up to 1000 V AC and 1500 V DC, International Electrotechnical Commission.
- ISO 2380-1, Assembly tools for screws and nuts - Screwdrivers for slotted-head screws, International Organization for Standardization.
Context of use required Filled
- Screwdrivers are used in assembly, repair and maintenance to tighten or loosen screws with matching head profiles.
- They are encountered in workshops, homes and equipment servicing wherever screw fasteners provide adjustable or removable connections.
Sources Filled
- ISO 2380, Assembly tools for screws and nuts - Screwdrivers for slotted-head screws - Defines the slotted-tip geometry, sizes, and the distinction between tips for hand- and machine-operated screwdrivers.
- ISO 8764, Assembly tools for screws and nuts - Screwdrivers for cross-recessed head screws - Defines Phillips and Pozidriv driver tips, blade lengths, and marking of hand-operated cross-recess screwdrivers.
- IEC 60900, Live working - Hand tools for use up to 1 000 V AC and 1 500 V DC - Governs insulated screwdriver construction, marking, and dielectric testing used for electricians' tools.
- Screwdriver - Overview of tip families in actual use (slotted, Phillips, Pozidriv, Robertson, Torx, hex), regional habits, and the cam-out behaviour that separates Phillips from Pozidriv and JIS.
- Wikidata item Q161071: screwdriver - identity and sense of the item
Open questions
- Does the registry intend screwdriver to include powered and manual impact screwdrivers, or should those be linked neighbouring models?
- Where does the registry place the boundary between screwdrivers, hex keys and nut drivers when handle forms and screw-driving functions overlap?
- Which authoritative profile and sizing references should support identification, especially for easily confused cross-head profiles?
- What manufacturer-specific criteria establish acceptable tip wear, retention performance and torque-control verification?
- Which evidence and inspection requirements apply to special-use claims, particularly electrical insulation and permission to strike the tool?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q161071/spec.json