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1/4" Dr 3 - 15 In Lbs Williams Micro Adjustable Torque Screwdriver - 151SMW

1/4" Dr 3 - 15 In Lbs Williams Micro Adjustable Torque Screwdriver - 151SMW

$187.20 $390.00
(You save $202.80)
Model #
Drive Size:
1/4 Inch Female Hex
English Range:
3-15 In Lbs
8 Oz
± 6%
In Lbs



The Williams 151SM Torque Screwdriver is a 1/4" adjustable torque screwdriver with a female hex drive and an English range of 3-15 In Lbs. The micro adjustable models offer versatility for applications that require more than one torque value. These Williams torque screwdrivers are particularly suited for the electronics industry and for instrument assembly work.

A simple, cam-over design on this 1/4" torque screwdriver prevents over-tightening and possible damage to components. Torque settings are easily and accurately changed with a unique adjusting knob and easy-to-read window scale. Adjusting the screwdriver is simple. Just pull out the adjusting knob to unlock, turn to the desired setting, then push the knob in until it clicks! Positive locking knob makes accidental setting changes impossible. Automatic lock in counterclockwise direction makes fastener removal a snap.


  • Positive locking pull down adjustment knob
  • Trilobular comfort grip
  • Universal 1/4” hex bit holder with strong rare earth magnet
  • Cam-over torque limiting clutch
  • Slip resistant finish
  • Easy-to-read window scale
  • Light weight
  • Automatic lock in CCW direction for disassembly
  • 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 B107.14 - 2004
  • Torque Range: 3-15 in. lbs.
  • Increments: .2 in. lbs
  • W x L Inches: 1.1 x 6.25
  • Wt. Oz.: 8