Tekton TRQ52402 - 1/2 in. Micrometer Torque Wrench

There is a category of fastener in aviation maintenance where getting the torque wrong is not a rework — it is an incident report. Main landing gear trunnion bolts. Wheel and brake assembly hardware. Structural airframe fasteners at primary load paths. Engine mount final torque on turbine powerplants. The Tekton TRQ52402 is the 1/2 inch drive micrometer torque wrench built for exactly this category of work — 40–200 ft-lb, calibrated to ISO 6789, with a serialized certificate of calibration that documents the actual measured accuracy of that specific tool before it ships.

ISO 6789 requires Tekton to test this wrench at 40, 120, and 200 ft-lb — the actual low end of the scale, not 20% up the range as ASME allows — with five readings per set point in both directions, clockwise and counterclockwise required to match. Every point on the dial is verified. The certificate that ships in the case is the beginning of a calibration record. Pilot John International continues it with ISO 17025-accredited recertification backed by NIST traceability, accepted by FAA Part 145 repair stations, Part 91/135 operators, and AS9100 quality systems.

Key Features

• ISO 6789 Full-Range Calibration — Tested at 40, 120, and 200 ft-lb in both directions; exceeds ASME B107.300 requirements at every point
• ±3% Accuracy CW & CCW — Actual measured accuracy of your individual wrench documented on the serialized certificate, not a batch average
• 1 ft-lb Minimum Increment — The resolution to hit tight AMM torque specs without interpolating between marks
• 90-Tooth Fixed Ratchet Head — Single half-moon pawl holds 9 teeth engaged simultaneously; 4° swing arc; will not skip under high-torque load
• Dual-Direction Click Mechanism — Positive audible and tactile click confirmation in both clockwise and counterclockwise directions
• Locking Collar — Auto-locks to prevent accidental setting changes between fasteners on high-torque sequences
• Laser-Etched Micrometer Scale — Satin finish, high-contrast bold fonts, straight indicator lines centered on the body — readable without rotating the wrench
• Coarse Diamond-Knurl Grip — Deep-cut pattern with centerline groove; keeps your hand locked at the calibrated pivot point under the leverage demands of 1/2 inch drive work
• HDPE Carrying Case — Hard-shell, custom-fit; protects the wrench and the certificate that travels with it
• Lifetime Warranty — No receipts, no time limits; Tekton makes it right

Specifications

• Drive Size: 1/2 in.
• Torque Range: 40–200 ft-lb
• Calibration Standard: ISO 6789
• Calibration Test Points: 40, 120, 200 ft-lb
• Accuracy: ±3% clockwise and counterclockwise
• Minimum Increment: 1 ft-lb
• Ratchet Teeth: 90
• Swing Arc: 4° per tooth
• Head Style: Fixed
• Mechanism: Micrometer click-type
• Scale Units: ft-lb (single-unit scale)
• Handle Finish: Satin
• Case Material: HDPE (latches: polypropylene)
• Certificate: Serialized, included
• Warranty: Lifetime

ISO 17025 Calibration Available at PJi — Because a Signed Logbook Entry Requires It

Pilot John International is an ISO 17025-accredited calibration laboratory. When your TRQ52402 is due for recertification, PJi issues a NIST-traceable calibration certificate with full test documentation — acceptable for FAA Part 145 repair station tool control records, Part 91/135 maintenance programs, EASA-regulated maintenance organizations, and AS9100 / ISO 9001 quality management system audits. For the applications this wrench is designed for, calibration traceability is not optional. PJi is the only aviation tool distributor that can sell you the TRQ52402 and recertify it under the same ISO standard your QA department requires.