Description
Hand wrenches are only half the story on many lines. Nutrunners and electric drivers set torque too, and they drift just like click wrenches. The Snap-on QC2ETT250 torque tester can check both kinds of tool. It reads 25 to 250 in-lb, or 28 to 280 dN·m, through a 3/8-inch drive.
One tester for hand and power tools
Snap-on states that its ETT testers work with non-impacting power tools. However, you need a joint rate simulator between the tool and the tester. The simulator mimics a real joint, so the reading reflects how the tool behaves on a part. Never use an impact wrench on the tester, because Snap-on rates it for non-impacting tools only.
For hand tools, the setup is simpler. Just fit the 3/8-inch drive of the wrench, or use an adapter, and pull to the click.
What the Snap-on QC2ETT250 torque tester offers
- Better than ±1% of indicated value, from 10% to 100% of the transducer range.
- Track mode for live torque and Peak mode for the highest value.
- Clockwise and counterclockwise readings.
- English and metric scales on one display.
- Choice of auto or manual reset between readings.
Typical users
Automotive tier suppliers use this range for interior trim, seat and HVAC module bolts. Meanwhile, appliance and electrical plants run it beside lines that use cordless drivers. Tool cribs also like it for wrenches that sit between light and medium duty.
Picking the right mode
Use Peak for a click wrench or a clutch driver, because the event lasts only a moment. In contrast, choose Track when you tune a tool and want to watch the torque climb. Auto reset speeds up repeat tests, while manual reset lets you note each value first.
Installation and care
Mount the tester on a wall or bench at the point of use. The neck design keeps the display visible, even with a long wrench in place. Also, keep coolant and metal chips away from the drive. Finally, send the tester for periodic recalibration at an independent lab.
Ordering the Snap-on QC2ETT250 torque tester
Lost in HCM supplies this tester, and SMK Vietnam lists it for them. So the fastest route is to request a quote from Lost in HCM. You can also browse torque testers and calibration systems or contact SMK Vietnam. Brand details are on snapon.com.
FAQ
Can I test an impact wrench on the QC2ETT250?
No. Snap-on rates these testers for non-impacting power tools only, and those also need a joint rate simulator.
What does dN·m mean?
It is a decinewton-metre, one tenth of a N·m. So 28-280 dN·m equals 2.8-28 N·m.
Does Lost in HCM supply joint rate simulators?
Ask them in your quote request. They will confirm what they can supply with the tester.
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