VEVOR 3/4-Inch Drive Click Torque Wrench, 100-600 Ft-Lb: specs and uses

The VEVOR HG-34600 is a 3/4-inch drive click-type torque wrench that covers 100 to 600 ft-lb (136 to 814 Nm). It is meant for tightening large fasteners to a set figure, such as on heavy vehicles and equipment, where too little or too much torque can cause problems.

How a click torque wrench works

You set the target torque on the handle scale, then pull on the wrench until it gives a distinct click and a slight give. That signals the set torque has been reached, and you stop pulling. This is why fasteners tightened with one tend to be more consistent than those tightened by feel. Click wrenches are normally set back to their lowest setting after use, as the manual will describe, to keep the internal spring in good condition.

What 3/4-inch drive and the range mean

The drive size is the square fitting that takes the socket. A 3/4-inch drive is used on larger fasteners, and typically on trucks, trailers and agricultural or industrial equipment, rather than ordinary car bolts. The 100-600 ft-lb range is high, so a wrench like this is typically not suited to small fasteners that need only a low torque. For those, a smaller wrench with a lower range is generally more suitable.

Accuracy and calibration

VEVOR gives the accuracy as plus or minus 3 percent, and says each wrench comes with a calibration certificate. Torque wrenches usually give their best accuracy in the middle to upper part of their range, so it helps to choose a wrench whose range sits around the figure you most often need.

Reading the scale

The scale is laser-etched in dual units, foot-pounds and newton-metres, and is highlighted so the markings are easy to see, including in low light, according to the brand. The wrench is described as dual-direction, so it can be used to tighten in either direction when needed.

Build and ratchet head

The body is alloy steel that VEVOR says has been through a six-stage heat treatment, with a chrome-plated surface that resists rust and wipes clean. The reversible ratchet head drives in both directions, and the brand says sockets can be changed with one hand.

The case

The wrench comes in a heavy-duty case that VEVOR says resists impacts and compression, which makes it easier to move between a workshop, a job site or a warehouse. Keeping a torque wrench in its case protects it from knocks that can affect calibration.

Who it suits

It suits mechanics and fleet workers who service large vehicles, trailers and heavy equipment, and anyone who needs to follow a manufacturer's torque specification on big fasteners.

What to check before you buy

• Torque range: make sure the figures you need fall within 100-600 ft-lb, ideally not at the extreme low end.
• Socket fit: you will need 3/4-inch drive sockets, and adapters change how the wrench is used.
• Weight: the wrench weighs 16.8 lb including the case's contents as listed, so check you can handle it comfortably.
• Calibration: check the certificate and the manual's advice on re-checking calibration over time.
• Storage and use: follow the manual on setting the scale after use, and don't use it to loosen stuck bolts.

The short version

• A 3/4-inch drive click torque wrench for 100-600 ft-lb (136-814 Nm).
• Stated accuracy of plus or minus 3 percent, with a calibration certificate.
• Dual-unit laser-etched scale and a reversible ratchet head.
• Alloy steel with a chrome-plated finish, supplied in a heavy-duty case.
• Best suited to large fasteners on heavy vehicles and equipment.

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