Tekton TRQ62231 - 1/2 in. Split Beam Torque Wrench Nm
The maintenance manual for an Airbus A320 is written in Newton-meters. When a task card specifies 280 Nm on a primary structural fastener, the correct tool reads 280 Nm natively — not a ft-lb wrench set to a converted value rounded to the nearest 5 ft-lb increment. For European-type aircraft, metric is not a preference. It is the specification language of the type certificate, the AMM, and the AD. The Tekton TRQ62231 is a 1/2 inch drive 72-tooth flex head split beam torque wrench with a native Newton-meter scale, 70–350 Nm — the only Tekton split beam wrench capable of reaching the upper structural, engine, and landing gear torque values in metric aviation documentation without a conversion step.
The split beam mechanism means there is no internal spring under compression at rest. The wrench stores at any Nm setting, on any bench, indefinitely, without calibration drift. In an EASA Part 145 environment where tool calibration records are part of the quality audit trail, a wrench that is properly stored by design — not by technician discipline — produces a more consistent calibration history. Set the thumbscrew to the Nm value in the AMM. Lock the flip-up cover. Apply torque to the click. Store it wherever it lands. The 10° flex head clears the structural geometry of Airbus pylon hardware, landing gear trunnion attachments, and propeller retention areas where a fixed-head wrench requires repositioning or lever-arm correction math. The effective length of 488 mm is documented for AMM off-axis crowfoot torque correction calculations when required.
When your TRQ62231 needs recertification, Pilot John International's ISO 17025-accredited calibration laboratory issues NIST-traceable calibration certificates in Newton-meters with full test documentation, measurement uncertainty statements, and traceability chain records — the standard required by EASA Part 145 approval holders and AS9100-certified maintenance organizations that manufacturer recertification services do not always meet. One distributor. One accredited lab. Audit-ready documentation between every interval.
Key Features
- Native Newton-Meter Scale, 70–350 Nm — The only Tekton split beam wrench reaching 350 Nm in metric; executes Airbus, ATR, Embraer, and EASA AMM torque specifications without conversion; calibration test points at 70, 210, and 350 Nm
- Split Beam Mechanism — No internal spring tension at rest; store at any Nm setting without calibration drift; calibration stability by design, not by technician storage discipline
- Set, Lock, Leave — Smooth thumbscrew Nm setting directly from AMM value; flip-up cover with internal locking teeth secures setting; recessed knob protected during high-torque sequences
- 1/2 in. Drive, 10° Flex Head — Reaches primary structural fasteners at engine pylons, landing gear trunnions, and propeller retention areas with clearance a fixed-head wrench cannot provide; 72-tooth ratchet, 5° swing arc
- 488 mm Documented Effective Length — Required input for AMM off-axis crowfoot torque correction calculations on obstructed fasteners; eliminates field measurement
- ±4% Accuracy CW — Calibrated to ASME B107.300-2021; tested at 70, 210, and 350 Nm; serialized certificate included
- 5 Nm Minimum Increment — Scaled for structural and drivetrain fastener torque values in this range
- Dual Nm / ft-lb Scale — Imperial reference on the wrench body; no conversion chart needed when the conversation crosses back to imperial
- All-Steel Construction — No plastic components; no wear-out failure mode under heavy structural maintenance demands
- 3.7 lb. — Appropriately weighted for two-handed leverage and control at 350 Nm without fatiguing the technician across a long structural inspection
- Lifetime Warranty — No receipts, no time limits; Tekton makes it right
Specifications
- Drive Size: 1/2 in.
- Torque Range: 70–350 Nm
- Mechanism: Split Beam
- Calibration Standard: ASME B107.300-2021
- Calibration Test Points: 70, 210, 350 Nm
- Accuracy: ±4% clockwise
- Measuring Direction: Clockwise only
- Ratchet Teeth: 72
- Swing Arc: 5° per tooth
- Head Style: 10° Flex
- Minimum Increment: 5 Nm
- Effective Length: 19.2 in. (488 mm)
- Overall Length: 22.8 in.
- Weight: 3.7 lb.
- Scale Units: Nm (primary), ft-lb conversion scale on body
- Construction: All-steel, no plastic parts
- Certificate: Serialized, included
- Country of Origin: Taiwan
- Warranty: Lifetime
Why 350 Nm Matters — The Structural Range No ft-lb Split Beam Covers in Metric
The TRQ62131 Nm split beam tops out at 130 Nm — sufficient for fuel system fittings, avionics components, and light structural hardware. The TRQ62231 extends to 350 Nm, reaching the primary attachment hardware of engine pylons, main landing gear trunnions, propeller shaft retention, and major airframe structural joints on European-type aircraft. No conversion. No interpolation. No margin of error introduced by rounding a converted value to the nearest scale increment. The Nm value in the AMM goes directly onto the thumbscrew dial.
ISO 17025 Calibration at PJi — Above the Manufacturer Recertification Standard
Pilot John International's ISO 17025-accredited calibration laboratory provides the preferred alternative for regulated aviation operators: NIST-traceable certificates in Newton-meters with measurement uncertainty statements and full traceability chain documentation — the evidentiary standard required by EASA Part 145 approval holders, AS9100-certified maintenance organizations, and quality auditors who ask not just whether the tool was calibrated, but whether the laboratory that calibrated it is itself accredited to an internationally recognized standard. PJi answers that question with its ISO 17025 accreditation certificate. Most manufacturer recertification services do not.
| General Information | |
|---|---|
| Part # | TRQ62231 |
| Manufacturer | Tekton |
| Specifications | |
|---|---|
| Accuracy | ±4% CW |
| Calibration Standard | ASME B107.300-2021 |
| Calibration Test Points | 70, 210, 350 Nm |
| Certificate | Serialized, Included |
| Construction | All-steel, no plastic parts |
| Country of Origin | Taiwan |
| Drive Size | 1/2 in. |
| Effective Length | 19.2 in. (488 mm) |
| Head Style | 10° Flex |
| Measuring Direction | Clockwise Only |
| Mechanism | Split Beam |
| Minimum Increment | 5 Nm |
| Overall Length | 22.8 in. |
| Ratchet Teeth | 72 |
| Scale Units | Nm (primary) with ft-lb conversion scale |
| Swing Arc | 5° per tooth |
| Torque Range | 70-350 Nm |
| Warranty | Lifetime |
| Weight | 3.7 lb. |
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QUESTIONS & ANSWERS
The TRQ62231 and TRQ62203 are mechanically identical — same 1/2 inch drive, same split beam mechanism, same 10-degree flex head, same dimensions and weight, same ASME B107.300-2021 calibration standard. The difference is the scale. EASA-regulated maintenance organizations working on Airbus, ATR, SAAB, Embraer, or Bombardier aircraft execute AMM torque specifications written in Newton-meters. The TRQ62231's native Nm scale — covering 70 to 350 Nm — allows technicians to set the wrench directly to the AMM value without a conversion step, eliminating a source of transcription error in regulated maintenance documentation. For EASA Part 145 facilities, the Nm scale is not a preference — it is alignment with the specification language of the type certificate.
350 Nm (approximately 258 ft-lb) covers Airbus A320 family engine pylon primary attachment hardware per AMM Chapter 71/54, A330 main landing gear trunnion fasteners, ATR 42/72 propeller shaft and gearbox mounting hardware, turboprop propeller hub retention nuts on high-power installations, and major structural joint fasteners on European transport category aircraft specified under EASA type certificates. It is the torque ceiling where primary structural integrity — not just component retention — depends on the accuracy of the applied value and the traceability of the tool that applied it.
The effective length is 19.2 inches (488 mm), measured from the center of the drive tang to the center of the handle grip pivot point. This measurement is required for the off-axis torque correction calculation used when attaching a crowfoot wrench or similar adapter that positions the drive point away from the drive tang centerline. Several Airbus and ATR AMM task cards specify crowfoot adapter procedures on obstructed fasteners and require this calculation explicitly. Having the documented 488 mm value in the tool specification eliminates the need to measure the wrench in the field and ensures the correction factor used in the torque calculation is traceable to the manufacturer's documented specification.