Description
Choosing a torque screwdriver starts with one question: what value does the drawing call for? The Snap-on QDRIVER4NMA torque screwdriver belongs to a family of adjustable drivers built for that kind of precise, low-torque work. Like its siblings, it uses a 1/4-inch square drive with a pin that holds the socket.
A quick buyer’s guide
Snap-on launched four pin-retention models together: QDRIVER2A, 3A, 4A and 4NMA. Snap-on gave all four the same feature list, including the clutch and accuracy class. However, each model covers its own torque band, so the right pick depends on your fastener spec.
We could not confirm the scale units or range of the QDRIVER4NMA on an official Snap-on page. For that reason, we leave those numbers out. Lost in HCM will state them in the quote, so you can compare them with your drawing before you buy.
What every model in the family shares
- Accuracy within ±6% from 20% to 100% of full scale, clockwise.
- Clutch that freewheels 90 degrees at the set torque.
- Pull, turn and push knob that locks the setting.
- Textured tri-lobe grip that will not roll on a flat bench.
- Light, rugged construction for daily line work.
Where the Snap-on QDRIVER4NMA torque screwdriver helps
For instance, plants that work to metric drawings often want a driver that suits their spec sheets. In that case, ask Lost in HCM to confirm the scale before you place an order. Typical jobs also include sensor mounts, small brackets, connector housings and circuit boards.
Verify before first use
First, check any new driver on a torque tester before it goes on the line. For example, a 1/4-inch electronic tester lets you confirm the release point at two or three settings. Then log the results as your baseline.
Care and storage
As a rule, turn the setting down when the shift ends. Also store the driver in its own slot, because a drop can shift the clutch. After that, plan regular checks and calibration in line with your quality plan.
Ordering from Lost in HCM
SMK Vietnam lists the Snap-on QDRIVER4NMA torque screwdriver for our partner Lost in HCM, who supplies it and prepares every quote. To begin, request a quote from Lost in HCM. You can also view related torque screwdrivers, check our torque testers, or contact SMK Vietnam. Brand information is on snapon.com.
QDRIVER4NMA questions
How is the QDRIVER4NMA different from the QDRIVER4A?
Both come from the same pin-retention family. Ask Lost in HCM to confirm the scale and range of each, so you can compare them side by side.
Does it torque counterclockwise?
No. Snap-on rates this family for the clockwise direction only.
How do I get a price?
Use the quote button. Lost in HCM replies with price, stock and lead time.
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