401SMW Williams Torque Screwdriver, (5 to 40) in.lbf

The 401SMW Micro Adjustable Torque Screwdriver is particularly suited for high volume use in assembly operations. A simple, cam-over design prevents over-tightening and possible damage to components. Universal 1/4″ hex bit holder with strong rare earth magnet.

Made in the USA and comes with a one-year manufacturer’s warranty.
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1 year warranty
Made in USA
Other Models

Product Description

  • Features
  • Specifications
  • Dimensions
  • Accessories
  • Downloads
  • Calibration
○ 6 models available
○ Positive locking pull down adjustment knob
○ Trilobular comfort grip; lightweight, rugged and built to last
○ Universal 1/4″ hex bit holder with strong rare earth magnet
○ Cam-over torque limiting clutch for repeatability and accuracy
○ Slip resistant finish
○ Easy to ready window scale and adjustment knob for precise settings
○ Automatic lock in CCW direction for removing screws
○ Accuracy +/- 6% of indicated value, CW, from 20% to 100% of full scale
○ Individually serialized with matching certificate of calibration traceable to N.I.S.T.
○ Meets or exceeds ASME B107.300 – 2010 and ISO 6789
Range 5 to 40 in.lbf
Accuracy ± 6% of Indicated Value from 20% to 100% of Full Scale (Clockwise)

Dimension 1.2 x 6.75
Drive 1/4″
Weight 10.8 oz

○ A Certificate of Calibration is included when calibration services are ordered from MRM Metrology Inc.
○ Use CAL 401SMW when requesting calibration services from MRM Metrology.

Calibration and Repair Services

MRM provides Calibration and Repair Services for the
401SMW Williams Torque Screwdriver, Micro-Adjustable

For a quote, please email us at  [email protected]


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