Description
Truck depots and heavy plant crews spend much of their day on big metric fasteners. The Snap-on QD4RN800A torque wrench suits that work, with a 3/4-inch drive and a 150-800 N·m range. It also uses a fixed ratchet head, so the socket stays on the nut between strokes.
A 3/4-inch metric wrench for heavy service
The Snap-on QD4RN800A torque wrench sits between two sizes. It reaches far above a 1/2-inch tool, yet it stays lighter than a 1-inch wrench. Because the scale reads in N·m only, it matches the service manuals of most Asian and European trucks. Lost in HCM places it in its ±4% accuracy Newton meter range.
Fleet and plant applications
- Wheel nuts on trucks, buses and trailers.
- Spring, axle and fifth-wheel bolts during fleet service.
- Pump, gearbox and motor base bolts in process plants.
- Tower and frame bolts on mid-size cranes and lifts.
Because the range starts at 150 N·m, it also covers mid-size joints on the same vehicle or machine.
Getting a clean click at high loads
Pull with a smooth, steady motion, at a right angle to the handle. A jerk can carry the load past the click before your hand reacts. Also keep both hands on the grip area, because a hand on the head changes the lever length. For wheel nuts, tighten in a star pattern, then make a second pass at the full value.
Storage and service intervals
First, wind the setting down to its lowest mark after each job. Next, clean off grease and grit, then store the wrench in its case. In addition, avoid using it to break nuts loose, since that strains the mechanism. Most fleets plan an outside calibration check every year, or sooner after heavy use.
Get the Snap-on QD4RN800A torque wrench
Our partner Lost in HCM supplies this tool and prepares quotes, while SMK Vietnam lists it. To ask for pricing, request a quote from Lost in HCM. You can also browse more torque wrenches, or contact SMK Vietnam for help with sizing. Snap-on details sit on the Snap-on website.
FAQ
Can the QD4RN800A tighten truck wheel nuts?
Yes, when the spec falls between 150 and 800 N·m, which covers many truck and bus wheels.
Why choose 3/4-inch over 1-inch?
A 3/4-inch wrench is lighter to handle. So it suits jobs that stay at or under 800 N·m.
How is it quoted?
Lost in HCM supplies it and confirms price, stock and delivery.
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