Choosing hand tools for commercial vehicle work
The demands placed on hand tools in an HGV workshop are different from those in a passenger car garage. Fastener sizes are larger, torque requirements are higher, and access to components is often more restricted. A socket set that covers the metric range from 6mm to 32mm is the minimum for most HGV work. Many chassis fasteners run to 36mm, 38mm, or larger on trailer components, so a set extending to at least 36mm is worth having.
Material quality matters on heavy work. Chrome vanadium steel is the standard for professional hand tools and provides the strength needed for high-torque applications without excessive weight. Avoid chrome-plated mild steel tools on fasteners that require significant force — the risk of rounding or snapping increases considerably on seized or corroded fixings.
Torque wrenches are essential for HGV work. Wheel nut torque specifications on HGVs typically run from 450 Nm to over 600 Nm depending on the axle and fixing type. A torque wrench rated below the required torque is useless, and exceeding specified torque on aluminium hubs or composite wheels risks thread damage. Check the torque specification for your vehicle type before selecting a wrench.
For wiring and electrical work alongside mechanical jobs, a set of combination pliers, wire strippers, and crimping tools covers most requirements. See our dedicated Pliers & Grips collection for auto-electrical hand tool options.
Frequently Asked Questions
What size socket set do I need for HGV work?
For general HGV maintenance, a socket set covering 6mm to 36mm in 1/2-inch and 3/4-inch drives covers the majority of fastener sizes. 3/8-inch drive sockets are useful for lighter work and restricted access. Some trailer and axle fasteners run larger — check the specific fastener sizes on the vehicles you work on before buying.
What is the difference between 1/2-inch and 3/4-inch drive sockets?
Drive size refers to the square drive connection between the ratchet handle and the socket. A 1/2-inch drive is standard for most HGV work and is adequate up to around 400 Nm. A 3/4-inch drive provides more torque capacity and is used for high-torque applications such as wheel nuts and heavy suspension fixings. Most HGV workshops keep both drive sizes.
Are chrome vanadium tools suitable for professional workshop use?
Yes. Chrome vanadium steel is the industry standard for professional hand tools. It offers a good balance of strength, toughness, and corrosion resistance. For most HGV applications, chrome vanadium tools will withstand daily professional use without issue. Impact-rated sockets used with air or electric impact wrenches should be specifically rated for impact use — standard chrome vanadium sockets can crack under repeated impact loads.
How do I maintain hand tools in a workshop environment?
Wipe tools clean after use and store them dry. Ratchet mechanisms benefit from occasional light oiling. Avoid leaving chrome tools in contact with coolant or brake fluid for extended periods, as both are corrosive to most metals. Inspect tools before heavy use — any visible cracks, rounding, or damage to the drive mechanism is a reason to replace, not continue using.
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