Williams 1501MRPHW 1/4″ Drive Comfort Grip Micrometer Adjustable Torque Wrench, Dual Scale (20-150 in-lb)

Description

The Williams 1501MRPHW pairs the same internals as Williams’ standard micrometer wrench line — dual scale, spring-loaded pull-down lock ring, laser-marked graduations — with an ergonomic polymer comfort grip, which matters if this wrench gets used dozens of times a shift rather than occasionally. 1/4″ drive, 20-150 in-lb (2.8-15.3 Nm) range.

Accuracy is ±3% CW of indicated value from 20-100% of full scale, meeting or exceeding ASME B107.300 and ISO 6789. Every wrench is individually serialized and ships with its own NIST-traceable certificate of calibration.

This is a good fit for production and maintenance environments where operator comfort over repeated use is as important as the torque accuracy itself.

**Frequently asked questions**

**How often does this need to be recalibrated?** Williams recommends annual recalibration for tools in regular use, or sooner if the tool is dropped, used outside its rated range, or run at high frequency in production. Keep the original NIST-traceable calibration certificate on file for your quality records.

**What standards does it meet?** Meets or exceeds ASME B107.300 (the current consolidated standard for hand torque tools, superseding the older B107.14) and ISO 6789. Each unit is individually serialized and ships with its own certificate of calibration.

**Can it be used in both directions?** Check the accuracy spec above — some models are calibrated clockwise (CW) only, others bidirectionally (CW/CCW). Using a CW-only tool for critical CCW work will not give a certified reading.