Spanner tool tethering kit for securing ring and combination spanners at height, rated to 1kg (2.2lbs).
- Two-component kit
- Tether Ring Medium (25mm) threads
- Extended Bungee Lanyard with 2m reach
- Dual Quick Clips for fast single-handed attachment and release
- NLG ID tag system included
- ANSI/ISEA 121-2023
- Max load: 1kg (2.2lbs)
- Lanyard reach: 2m
Spanner tool tethering kit for securing ring and combination spanners at height, rated to 1kg (2.2lbs).
- Two-component kit
- Tether Ring Medium (25mm) threads
- Extended Bungee Lanyard with 2m reach
- Dual Quick Clips for fast single-handed attachment and release
- NLG ID tag system included
- ANSI/ISEA 121-2023
- Max load: 1kg (2.2lbs)
- Lanyard reach: 2m
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Log in to access trade discountsNLG Spanner Tool Tethering Kit
Spanner tool tethering kit providing everything needed to secure ring and combination spanners at height in a single ready-to-use package. The Tether Ring™ threads directly through the ring end of a standard spanner, creating a rated 1kg attachment point without drilling, adhesive, or any modification to the tool. The Extended Bungee Lanyard adds 2m of reach, accommodating bag work and overhead fastening tasks where a standard-length lanyard would be under constant tension before the spanner reaches the fastener. Third-party tested to ANSI/ISEA 121-2023, with the NLG ID tag system included for on-site inspection logging and certificate access.
How the Tether Ring creates a secure attachment on spanners without modification
Tethering a spanner without a built-in attachment point creates a problem: drilling into hardened steel weakens the tool under torque loading, adhesive D-rings add bulk that interferes with pouch storage, and wrapping tape around the handle creates an unreliable connection that degrades with use. The Tether Ring threads through the ring end of a standard combination or ring spanner, the same closed end the tool's geometry is built around, to create a secure, load-rated attachment point that requires no modification and adds no bulk to the working end of the tool.
Key Features
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Tether Ring™ Medium (25mm) for ring and combination spanners: Threads through the ring end of a standard spanner to create a clean, permanent-feeling attachment point with no drilling or modification. Rated to 1kg, which provides headroom for the vast majority of professional combination and ring spanners.
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Extended Bungee Lanyard with 2m reach: The extended length is designed for bag work and overhead fastening applications where a standard 80-120cm lanyard creates constant tension on the tether connection before the spanner reaches the work. Bungee construction absorbs the jolt of a dropped tool rather than transmitting it rigidly to the anchor point.
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Dual Quick Clips™ for fast single-handed operation: Both ends of the lanyard are fitted with Quick Clips that allow one-handed connection and release without unscrewing a gate or unclipping a carabiner. Keeps the operative working efficiently rather than stopping to manage a complex connector.
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NLG ID tag system included: Scan with a smartphone to access load test certificates, instruction videos, and inspection logs. Supports documentation requirements under a formal dropped object prevention policy.
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ANSI/ISEA 121-2023 compliant, third-party tested: Independent laboratory load testing confirms system performance against the current dropped object prevention standard. Declarations of Conformity available on request from NLG.
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Country of origin UK: Manufactured in the UK.
Who is this for
Trades and roles:
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Scaffolders
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Steelworkers and structural engineers
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Maintenance engineers
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Electricians and MEP contractors
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Utilities and telecom operatives
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General contractors working at height
Industries:
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Construction
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Oil and gas
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Utilities and telecoms
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Facilities management
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Industrial maintenance
Specifications
| Specification | Detail |
|---|---|
| Product Name | NLG Spanner Tool Tethering Kit - 1kg Tether Ring and Extended Bungee Lanyard |
| SKU | NLG101555 |
| Kit Contents | 1x NLG Tether Ring™ Medium (NLG101273), 1x NLG Extended Bungee Tool Lanyard (NLG101434) |
| System Max Load | 1kg (2.2lbs) |
| Compliance Standard | ANSI/ISEA 121-2023 |
| Testing | Third-party laboratory load tested. Declarations of Conformity available on request. |
| NLG ID Tag | Included. Scan for certificates, instruction videos, and inspection logs. |
| Tether Ring Size | Medium, 25mm diameter (NLG101273) |
| Tether Ring Max Load | 1kg (2.2lbs) |
| Extended Bungee Lanyard Reach | 2m |
| Extended Bungee Lanyard Max Load | 5kg (11lbs) |
| Extended Bungee Lanyard Connectors | Dual Quick Clips™ |
Kit contents
| Component | Detail |
|---|---|
| 1x NLG Tether Ring™ Medium | SKU: NLG101273 / Max load: 1kg (2.2lbs) / 25mm diameter |
| 1x NLG Extended Bungee Tool Lanyard | SKU: NLG101434 / Max load: 5kg (11lbs) / 2m reach, Dual Quick Clips™ |
Compatibility
| Application / Tool Type | Status |
|---|---|
| Ring spanners up to 1kg (ring end provides Tether Ring attachment) | ✓ Compatible |
| Combination spanners up to 1kg (using ring end) | ✓ Compatible |
| Scaffold spanners with ring end up to 1kg | ✓ Compatible |
| Other hand tools up to 1kg with a ring or captive hole attachment point | ✓ Compatible |
| Bag work and extended-reach overhead fastening tasks | ✓ Compatible |
| Wrist anchor and belt loop anchor deployments | ✓ Compatible |
| Tools exceeding 1kg system max load | ✗ Not recommended |
| Open-ended spanners without a ring or captive hole (no attachment point) | ✗ Not recommended |
| Fall arrest or personal safety applications | ✗ Not recommended |
| Load-bearing lifting or material handling | ✗ Not recommended |
Who is this for
The spanner tool tethering kit is specified by scaffolders, steelworkers, maintenance engineers, and MEP contractors who carry spanners at height as part of their standard toolkit and work under a site-level dropped object prevention policy. It is suited to any application where a combination or ring spanner is used above ground level and a dropped tool creates a risk of injury to personnel below, including scaffold erection and dismantling, structural steelwork connections, MEWP platform work, and maintenance tasks on elevated equipment. The 2m lanyard reach makes it particularly suited to operatives who carry tools in a bag or belt pouch and need to extend the tether to reach overhead or recessed fasteners without removing the lanyard.
Typical applications
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Tightening and loosening scaffold fittings and couplers on scaffold structures at height, where a dropped spanner presents a serious hazard to site personnel below.
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Connecting structural steelwork bolts at elevation, where the spanner must reach fasteners at various angles and the 2m extended lanyard avoids constant tether tension restricting movement.
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Maintenance work on elevated mechanical and electrical equipment where a combination spanner is a primary working tool throughout the shift.
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MEP installation on MEWP platforms, using the extended lanyard to reach overhead pipe and cable tray fixings without the tether pulling the tool short.
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Utilities and telecoms work on towers and masts where every tool at height must be tethered under a site dropped object policy.
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Working from a tool bag at height, where the extended lanyard allows the spanner to reach from the bag to the work position without the tether going taut.
How to use
Step 1: Confirm the spanner's total weight does not exceed 1kg before attaching the kit. Most professional combination spanners up to approximately 27mm fall within this limit, but verify for larger sizes.
Step 2: Thread the Tether Ring™ through the ring end of the spanner. The ring sits inside the closed box end and cannot pull free once the lanyard is loaded.
Step 3: Connect one Quick Clip of the Extended Bungee Lanyard to the Tether Ring. Press the clip open with one hand, engage the ring, and release to close.
Step 4: Connect the second Quick Clip to the chosen anchor point: a wrist band, belt loop, or rated structural anchor point. Confirm the clip is fully closed before beginning work.
Step 5: Check that the 2m lanyard reach is appropriate for the working distance and that the spanner can reach the work position without the tether going fully taut.
Step 6: Scan the NLG ID tag system before beginning work to confirm the kit is within its inspection interval and that all records are current.
Common mistakes
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Using the kit for spanners above 1kg: Larger scaffold spanners and heavy combination spanners in the 30mm-plus range may exceed the 1kg system limit. Weigh the specific spanner before deploying this kit, particularly for larger sizes.
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Threading the Tether Ring through an open-ended jaw: The ring only creates a secure attachment point when threaded through the closed ring end of the spanner. An open-ended spanner has no suitable hole and is not compatible with this kit.
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Running the lanyard too short for the task: The 2m extended reach exists precisely for bag work and overhead applications. If the anchor point is positioned too close to the work, the lanyard will be under constant tension rather than hanging freely, which puts continuous stress on the Tether Ring attachment and the anchor.
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Failing to close the Quick Clips fully: The Dual Quick Clips require a firm press and release to close correctly. A partially closed clip can disengage under the vibration and movement of active tool use. Check each clip manually before working.
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Continuing to use a kit after a drop event: Even a short drop onto a hard surface can deform the Tether Ring or stress the lanyard bungee beyond its design limits. Quarantine the full kit and inspect before returning to service.
Safety
This kit is rated to a system max load of 1kg (2.2lbs) and must not be used with spanners or other tools exceeding this weight. The Tether Ring must only be threaded through a ring or captive hole on the tool - it must not be used with open-ended spanners or any tool without a suitable hole. This kit is for tool tethering only and must never be used as a fall arrest or personal safety connection. All components should be inspected before each use and retired immediately if damage, deformation, or wear is visible. In the event of any drop or arrest, quarantine the full kit for inspection before returning to service. Equipment should be used in accordance with the Working at Height Regulations 2005 and any applicable site dropped object prevention policy.
Maintenance
Inspect the Tether Ring for deformation, wear at the ring surface, and any cracking or corrosion before each use. Check both Quick Clips open, close, and spring cleanly under manual test. Inspect the bungee lanyard body for fraying, cuts, or deterioration of the cord. Clean with mild soap and water only. Store away from direct sunlight and heat sources. Scan the NLG ID tag system to log inspections and access the NLG Inspection Checklist. Retire any component showing wear or damage and replace with the equivalent NLG-rated item before returning the kit to service.
Frequently Asked Questions
Q: Which spanners are compatible with this kit?
A: The kit is designed for ring spanners and combination spanners where the Tether Ring™ threads through the ring end (the closed box end). Most professional combination spanners up to approximately 27mm fall within the 1kg system max load. Larger scaffold spanners and heavy-duty combination spanners above this size should be weighed before use. Open-ended spanners with no ring end are not compatible, as there is no suitable hole for the Tether Ring to thread through.
Q: What is ANSI/ISEA 121-2023 and does it apply to this kit?
A: ANSI/ISEA 121-2023 is the current American National Standard for dropped object prevention solutions, covering performance requirements and test methods for tool tethering equipment. This kit has been independently laboratory tested and certified to that standard, confirming the 1kg system load rating. In the UK, ANSI/ISEA 121-2023 is the benchmark standard referenced by site dropped object prevention policies across construction, oil and gas, utilities, and telecoms. Declarations of Conformity are available on request from NLG.
Q: What is this kit NOT suitable for?
A: This kit must not be used with spanners or tools exceeding 1kg. Open-ended spanners with no ring end cannot be tethered with this kit as there is no attachment point for the Tether Ring. It is not suitable for fall arrest, personal safety, or any body-worn safety connection. The kit must not be used for load-bearing lifting or material handling. For heavy power tools or tools above 1kg, a higher-rated kit with the correct attachment method is required.
Q: Why does the Extended Bungee Lanyard have 2m of reach rather than a standard length?
A: Standard tool lanyards typically extend to 80-120cm, which is adequate when the tool is held directly in the hand at arm's length. For bag work, the spanner is stored in a pouch or bag and pulled out repeatedly throughout the shift - if the lanyard is anchored to a wrist or belt, a short lanyard goes taut as soon as the spanner reaches the bag. At 2m, the Extended Bungee Lanyard allows the operative to reach into a bag at hip level or work overhead without the tether restricting movement. The bungee construction also prevents the constant tension of a straight webbing lanyard when the spanner is at full reach.
Q: How do I attach the Tether Ring to a scaffold spanner?
A: Thread the Tether Ring through the ring end of the spanner - the closed box end, not the open jaw. The ring slides through the hole and sits inside the ring end. Once the Quick Clip is connected to the Tether Ring and loaded, the ring cannot pull free through the hole. There is no toggle, thread, or secondary fastening required. The ring should move freely inside the ring end so the spanner can rotate without the tether tangling.
Q: How do I know when to retire the kit?
A: Inspect the Tether Ring before each use for deformation, wear at the surface, or any cracking. Check both Quick Clips open and close cleanly under manual pressure. Retire any component that shows damage, distortion, or significant wear. Following any drop or arrest event, quarantine the full kit and inspect in full before returning to service. The NLG ID tag system provides access to inspection logs and the NLG Inspection Checklist via smartphone scan, supporting the formal inspection records required under a dropped object prevention policy.
Q: Can I buy replacement components individually?
A: Yes. The NLG Tether Ring™ Medium (NLG101273) and NLG Extended Bungee Tool Lanyard (NLG101434) are both stocked individually at CMT Group. Replace any retired component with the NLG-rated equivalent rather than an unrated substitute, as the system's 1kg load rating depends on both components meeting their specifications.






