Inch Pound Torque Wrench 1/4-Inch Drive | 20~200 in-lb/2.26~22.6 Nm (LX-181)

For bicycle work, check the part maker's value against 20-200 in-lb (2.26-22.6 Nm). LX-181 suits clockwise fasteners within that interval, with a correctly fitted 1/4-inch drive attachment; it cannot cover every small bicycle bolt or left-hand thread.

For small motorcycle fittings, match the Torx or other attachment to the actual fastener and the 1/4-inch drive. The service-manual setting must fall within 20-200 in-lb and tighten clockwise; motorcycle brand alone does not establish fit.

Valve-cover and small-engine work is conditional on the specified torque and access. Read the engine procedure, distinguish in-lb from ft-lb, and use LX-181 only for clockwise settings of 20-200 in-lb; it supplies no engine-specific bolt sequence.

A 3/8-inch drive socket does not connect directly to LX-181's 1/4-inch square drive. This is the recess at the back of the socket, separate from the opening that grips the bolt. Choose a matching attachment for the small drive.

The calibrated range begins at 20 in-lb, or 2.26 Nm. A bicycle or other small part specified below that minimum needs a different torque tool; turning the handle lower does not create a lower calibrated measuring range.

LX-181 cannot provide calibrated left-hand tightening. Its selector changes ratcheting direction, while torque measurement is limited to clockwise. For bicycle components with a left-hand thread, choose a model with reverse measurement.

LX-181 carries inch-pound and Nm markings: 20-200 in-lb equals the 2.26-22.6 Nm range. Match the service-manual unit before setting the handle. A value stated in foot-pounds cannot be copied unchanged onto this inch-pound scale.

The small handle divisions are 1 in-lb each, approximately 0.113 Nm. That explains why the Nm scale is less intuitive than a whole-number Nm scale. Add the micrometer value to the body scale; do not read each small mark as 1 Nm.

200 in-lb is an allowed LX-181 endpoint, not 200 ft-lb. If the job needs more than 200 in-lb, its upper limit rules this wrench out; a larger socket or more pulling force does not extend that rating.

On LX-181, the click can feel like a brief give in the handle. It is a stopping signal, not a force limiter. Release pressure at that first impulse instead of expecting the ratchet to stop transmitting force.

Use another suitable tool to free a stuck bolt. LX-181 is a small precision instrument; do not use it as a breaker bar or add extra leverage.

This 20-200 in-lb tool can give a subtle signal at low settings. Practice in a quiet environment on a non-critical fastener. A larger foot-pound wrench's louder click is not a requirement for this small wrench.

LX-181 reaches 200 in-lb with a 1/4-inch drive but measures only clockwise. LX-180 uses the same drive, starts lower at 10 in-lb, tops out at 150 in-lb and measures both ways. Choose LX-181 for the higher inch-pound ceiling when clockwise measurement fits.

Each LX-181 is calibrated during assembly. Its certificate records that instrument's torque test results and identifies the matching wrench. Confirm your employer's documentation requirements before relying on the certificate for controlled work.

Lexivon has stated that NIST traceability is not provided for this basic wrench. If your work requires NIST-traceable documentation, confirm current certification arrangements before ordering; the supplied certificate alone does not establish that requirement.

LX-181's knob, rotating handle and click mechanism work by hand. There is no battery setup or charging step in its operating procedure; lock the torque mechanically before use.

LX-181 includes a hard plastic case, the 1/4-inch drive wrench and calibration certificate. Choose a socket or bit attachment matched to your small fastener separately; this is not a bicycle bit kit.

12 months standard; 24 months when you register online within 90 days of purchase. Commercial use stays at 12 months, industrial use is excluded and the warranty covers defects, not a routine recalibration service.

LX-181 uses a bottom locking knob. Loosen it counterclockwise, turn the knurled handle to combine the body and micrometer readings, then snug the knob clockwise by hand. Recheck the chosen inch-pound or Nm value after locking.

An absent recognizable impulse is a reason to pause the LX-181 job. Practise pulling slowly on a non-critical fastener; if the signal still cannot be identified, contact Lexivon rather than continuing until a small bolt breaks.

A sticking LX-181 ratchet or a handle that will not hold its setting needs attention before further measurement. Hand-tighten the locking knob as instructed; if the fault remains, stop and contact Lexivon. Do not force the ratchet with pliers.

After an LX-181 job, return the body scale to 20 in-lb and the micrometer to zero. Zero on the micrometer is part of that minimum setting, not permission to turn the entire wrench down to zero torque.

For an LX-181 left unused for a long period, work it several times at a low setting before the next job. This redistributes internal lubricant. Clean only with a dry, lint-free cloth and keep the instrument dry.

Lexivon does not offer recalibration services or recommend self-calibration. Arrange testing with a laboratory trusted by you or your employer. Expected accuracy is 5,000 clicks, about two years from first use, with low-setting storage in a suitable environment; workplace requirements may be stricter.