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CDI 1/4" Dr 5-50 In Lbs / .56-5.65 Nm Electronic Dial Torque Wrench 501ED

1/4" Dr 5-50 In Lbs / .56-5.6 Nm CDI Electronic Dial Torque Wrench - 501ED

Model #
Drive Size:
1/4 Inch
English Range For This Tool:
5 - 50 In Lbs
Metric Range For This Tool:
.56-5.6 Nm
Weight Lbs:
± 1%
In Lbs to 300
Ft Lbs to 25
Nm to 33.9



The CDI 1/4" Drive Electronic Dial Torque Wrench offers an English Range in 5-50 In lbs and .42-4.17 Ft Lbs and Metric Range in .56-5.65 Nm and 5.7-57.65 KgCm. The Electronic Dial (ED) torque wrench features solid-state electronics for accurate torque application and measurement. ED’s design provides easy set-up and usage. There is no need to look directly at the digital readout as the wrench features 3 indicating lights and an audible buzzer. The ED wrench has unsurpassed reliability and durability -- 21st century technology in a simple, easy to read digital torque wrench.


  • 4 units of measure...ft lb, in lb, Nm,
  • Accuracy: ± 1% of indicated value CW & CCW, from 20% to 100% of full scale.
  • 3 step LED visual signal system YELLOW LIGHT = approaching target torque GREEN LIGHT = target torque reached RED LIGHT = over torque indicator.
  • Audible tone when desired torque is reached.
  • Alarm tone sounds if wrench is overtorqued.
  • Ergonomically designed wrench body.
  • Display can be turned 180 degrees to allow left hand usage.
  • Battery cover designed to be aviation FOD proof.
  • Holds “peak” torque reading for 10 seconds.
  • Constructed of special Capron® material for long life and durability.
  • Resistant to the majority of chemicals used in industrial environments.
  • Wrench can be hung on tool board.
  • Bar graph displays orientation of torque application (left or right hand).
  • Uses standard 9 volt alkaline battery.
  • N.I.S.T. traceable certificate of calibration included.
  • Meets or exceeds ASME B107.28 – 2005


Warranty Information

Williams Industrial Tools Torque Products Warranty: Williams Industrial Tools warrants to the original purchaser of CDI Torque Products that the companys torque products are free from defects in workmanship and materials. Williams Industrial Tools will repair or replace CDI Torque Products which fail to give satisfactory service due to defective workmanship or materials (excluding calibration) for 12 months from the date of original purchase. Williams Industrial Tools warrants “initial, out of box calibration” of each new, unused CDI Torque Product. Repair, replacement or recalibration shall be at the election and expense of Williams Industrial Tools, and is your exclusive remedy in place of all other rights and remedies. Products must be returned with proof of purchase, freight prepaid, to a CDI Torque Products repair center for warranty service. Williams Industrial Tools will repair or replace Williams Torque Multipliers which fail to give satisfactory service due to defective workmanship or material for 90 days from the date of original purchase. Williams Industrial Tools does not provide any warranty for products subjected to abnormal use. Abnormal use includes misuse, accident, modification, unreasonable use, neglect, lack of maintenance, or use after the tool is significantly worn.