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DI-4B-25 Air Tool & Impact Torque Tester

Made in Japan
Impact  Torque Tester
Click images to enlarge.
The new DI-4B-25 fast response torque testers are perfectly suited for on-the-spot calibration of air tools and impact drivers, but will calibrate any type of manual wrenches as well.

di-4b-25-torque tester This torque tester gives a digital readout of peak value in either direction and also indicate the number of blows for a selected time period.

This torque tester has an accuracy of ±0.5%, ±1 LSD, Peak, Real Time and Peak Down modes, and provides peak data for SPC (statistical process control) via the RS232 port.

run-down-fixture Joint simulator thread size 5/16-18 included (10-24, 3/8-16 and M5, M6 and M10 threads sold separately.

Calibrate your own air tools and impact drivers and save down time.


  • Heavy duty metal construction
  • Displays number of blows for selected period (0.1 - 9.9 sec)
  • Selectable Units: lb-ft, kg-m and N-m
  • Both clockwise and counterclockwise operation
  • RS-232 peak data output for SPC capability
  • Peak, Real Time and Peak Down measuring mode (selectable)
  • Runs on internal NiCad batteries (8 hour use)
  • Soft joint, hard joint and AC adapter/charger included
  • ISO/IEC 17025 Long-form Certificate & Test Data is optionally available
  • 2 Year Warranty
  • Includes NIST Traceable Calibration Certificate

Related Products

Impact Torque Tester
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Impact Torque Wrench Tester
- Counts Pulses / Blows while displaying peak torque
- Heavy Duty Construction
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Digital Torque Tester for Air Tools & Impact Wrenches
- Accuracy: ±0.5% F.S. ±1 LSD ( 32° to 100°F)
- USB data output (peak data only)
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Data Acquisition Software for Torque
- Full SPC and graphing capabilities
- Automates your data collection


di-4b-25 dimensions

Complete Kit

The DI-4B-25 is supplied as a complete kit including torque tester, joint simulators, ac adapter/charger, operating instructions and calibration certificate
di-4b-25 complete kit


Capacity0.1~220.0 lbf-in
0.1~250.0 kgf-cm
0.01~25.00 N-m
Accuracy± 0.5% F.S., ±1 LSD

Buy Now

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  Item Price  
DI-4B-25 Torque Tester Complete Kit
Upgrade from 3 point NIST traceable cert to ISO-17025 Certificate
Data Acquisition Software for Torque
USB output cable (formerly CB-208)
In stock
1 Week Lead Time (Estimated)
2-3 Week Lead Time (Estimated)