Description
Older Japanese and Korean machine manuals often give bolt values in kg·m. Converting each one by hand invites mistakes on site. The Snap-on TQRM80 torque wrench reads in kg·m directly, so the number on the drawing is the number you set. It is a 3/4″ drive TQ series click-type wrench with a detachable ratchet head.
Who still works in kg·m
Kilogram-meters appear in many service manuals for presses, injection molding machines, cranes and generators. Plants in Vietnam that run that equipment for decades keep the original specs. So a metric kg·m wrench such as the TQRM80 saves a step and removes a source of error. In addition, the handle carries a conversion scale for other units.
What Snap-on lists for the TQRM80C
The current CAT1500i catalog shows the TQRM80C, the latest version of this model. Treat these figures as a guide, and confirm them for the unit you order.
| Drive | 3/4 in |
| Head | Detachable ratchet, 32 teeth, 11° arc |
| Range | 26-80 kg·m |
| Increments | 2.0 kg·m |
| Length | 48 in |
| Head width / depth | 2-3/8 in / 1-1/4 in |
| Case / repair kit | PB39 / RKRQC4 |
Converting kg·m settings
One kg·m equals about 9.81 N·m or 7.23 ft-lb. Therefore 26-80 kg·m works out to roughly 255-785 N·m, or 188-579 ft-lb.
How the Snap-on TQRM80 torque wrench behaves in use
TQ series wrenches use a split-beam element rather than a heavy coil spring. As a result, they have fewer moving parts and less wear. You set the value with a thumb screw, while a guard stops it from drifting. However, the wrench measures clockwise only. Snap-on also warns users not to break fasteners loose with it.
Long-wrench jobs it suits
- Foundation and anchor bolts on presses and large pumps, where the TQRM80’s long handle helps.
- Track, slewing ring and boom bolts on construction equipment.
- Flange and coupling bolts on turbines and gensets.
Quote the Snap-on TQRM80 torque wrench
Lost in HCM supplies this wrench and SMK Vietnam lists it. Tell them the range you need when you request a quote from Lost in HCM. Meanwhile, you can view other torque wrenches, contact SMK Vietnam, or read more on snapon.com.
TQRM80 FAQ
Is the TQRM80 the same as the TQRM80C?
Snap-on’s current catalog lists the TQRM80C. The suffix marks a version, so ask Lost in HCM to confirm the exact model and range they supply.
How do I turn a kg·m value into N·m?
Multiply by 9.81. For example, 50 kg·m is about 490 N·m.
Can it tighten left-hand threads?
No. Snap-on builds the TQ series for clockwise torque only, and the wrench is not reversible.
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