Proto J6342 User Manual [patched] -

: Never lubricate the internal adjustment mechanism. The tool is factory-lubricated for life. External cleaning only.

Proto J6342 Go to product viewer dialog for this item. is a high-precision . It is designed for tasks requiring extreme accuracy, offering a variance of only in both clockwise and counter-clockwise directions. Key Features & Specifications proto j6342 user manual

Never use power tools (impact wrenches, drill motors) to drive the J6342. It is a precision hand tool only. : Never lubricate the internal adjustment mechanism

| Parameter | Value | |--------------------|------------------------------| | Display | 4.3″ IPS, 480×272, capacitive touch | | Inputs | 2× M12 8‑pin, 1× USB‑C | | Measurement range | -200°C to 1350°C (temp); 0–10,000 psi | | Accuracy | ±0.05% FS | | Battery life | 12 hours typical | | Operating temp | -10°C to 55°C | | IP rating | IP54 (dust & splash resistant)| Proto J6342 Go to product viewer dialog for this item

According to the official user manual, the Proto J6342 is designed for:

: The manual explicitly states that this tool is not for breaking loose rusted fasteners or for use as a breaker bar.

Position the vehicle on a flat concrete surface. Engage the parking brake. Locate the vehicle’s lift points as specified by the vehicle manufacturer (typically on the pinch welds or frame rails).