Description
Many small-fastener specs come in inch-pounds, not foot-pounds. The Snap-on CTECH1JM240 torque wrench reads in that unit from 12 to 240 in-lb. It is a Micro Size ControlTech digital wrench with a J-shank head fitting, so it shares heads with the full-size J models.
Three J-shank ControlTech options
| Model | Body | Length | Weight |
|---|---|---|---|
| CTECH1JM240 | Micro Size | 10.15 in (258 mm) | 0.80 lb (0.36 kg) with battery |
| CTECHL1J240A | Aluminum | 12.5 in (316 mm) | 1.0 lb (0.45 kg) |
| CTECH1J240A | Steel | 12.5 in (318 mm) | 1.8 lb (0.8 kg) |
All three cover the same span: 1 to 20 ft-lb, or 12 to 240 in-lb. So the choice comes down to reach and feel. The Micro body is the shortest and lightest of the group, which helps in tight bays and on fine threads.
When the Snap-on CTECH1JM240 torque wrench fits best
- Screws on drives, PLC racks and terminal blocks.
- Sensor and connector hardware under a dash or inside a robot arm.
- Small brackets on medical or lab equipment.
- Fittings inside a crowded machine cabinet.
Choosing J heads
The J shank is 0.425 in across. You buy heads as separate items, and they also fit the other J models above. For instance, a 1/4″ square drive ratchet head covers socket work. Then open-end and box-end heads handle tube nuts and recessed nuts. Keep every head for the CTECH1JM240 in one labeled tray, so nobody grabs a larger Y or X head by mistake.
Reading the low end
Snap-on rates its Micro wrenches at ±2% clockwise from 20% to 100% of full scale. On this model, 20% equals 48 in-lb. Below that point the band widens, so for very light targets, pick a smaller tool.
Order the Snap-on CTECH1JM240 torque wrench
Lost in HCM supplies this wrench, while SMK Vietnam lists it for them. Add the J heads you want to the request, then request a quote from Lost in HCM. You can also see our other torque wrenches, or contact SMK Vietnam.
CTECH1JM240 questions
Is 240 in-lb the same as 20 ft-lb?
Yes. 240 divided by 12 gives 20 ft-lb, or about 27.1 N·m.
Can it share heads with the CTECH1J240A?
Yes, both use the J shank. Still, check each head’s rating before use.
Does the weight include the battery?
Yes. The catalog lists 0.80 lb (0.36 kg) with the battery fitted.
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