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Series I Electric Screwdriver Torque Tester

Made in Japan
Series-I Cedar Torque Tester
Click images to enlarge.
The Series i line of torque testers measure the peak torque of non-impact electric/air drivers. Under tightened bolts and screws do not generate sufficient clamp force and can lead to loosening and assembly failure. Over tightening, past the yield point, permanently deforms the screw joint and can also lead to failure which is why proper tightening torque is so important. Manual torque wrenches can also be calibrated.

Unique Smart Adapters
The unique Smart Adapters simulate the screw joint and do not need to be backed-off after each test. This features increases testing efficiency and ease of use by reducing the time between each test. Results can be downloaded through the USB port for analysis with data acquisition software. The Series i torque calibrators are compatible with SW-1SV-USB software.

The peak torque or peak down torque in breakaway tests is captured automatically. The Series i torque calibrator displays Max, Min and Avg statistics. The tester can read values in lbf-in, kgf-cm, N-cm and N-m. What’s Included

All series i torque testers are sold in kit form complete with tester, hard carrying case, 2 driver adapters and AC charger/adapter. All testers come with a 3-Point Certificate traceable to NIST. ISO Certificates are available at an additional charge.

Do not use with impact or air tools (Ask for DI-1M impact wrench torque tester).


  • Capacities up to 174 lb-in / 20 Nm
  • Selectable units lbf-in, Kgf-cm, N-cm and N-m
  • Programmable High/Low setpoints with audible beep for uniform torque tightening or GO/NO GO testing
  • 2 – driver adapters included: i-8 & i-80 come with smart adapters, CD-150 & DI-11 come with spring adapters
  • Peak, Real Time and Peak Down measuring modes (selectable)
  • Measure both clockwise and counterclockwise
  • USB virtual COM port sends peak (1 data) or continuous data (12 or 180 data/second)
  • Statistics: number of data, Max, Min, Avg
  • Heavy-duty metal construction
  • Runs on internal NiCad batteries or AC adapter
  • 3/8″ drive for socket wrenches

Force Ranges

i-87 lb-in
8 kg-cm
78.6 N-cm
0.001 lb-in
0.001 kg-cm
0.01 N-cm
i-8070 lb-in
80 kg-cm
7.86 Nm
0.01 lb-in
0.01 Kg-cm
0.001 Nm
CD-150M130 lb-in
150 kg-cm
15 Nm
0.1 lb-in
0.1 Kg-cm
0.01 Nm
DI-25217.2 lb-in
250 kg-cm
25 Nm
0.1 lb-in
0.1 Kg-cm
0.01 Nm
Accuracy: ±0.5% F.S., ±1 LSD

Standard Adapters

i-8 i-80 CD-150M DI-11
Adapter Smart Adapters Spring Adapters
OW-025E, OW-10E, OW-20E, OW-60E - Smart adapter run-downs SJ-50, SJ-100, SJ-200 - Spring adapter run-downs
Model OW-025E OW-10E OW-20E OW-60E SJ-50 SJ-100 SJ-50 SJ-200
Range 2 lb-in 9 lb-in 18 lb-in 53 lb-in 8 ~ 50 lb-in 50 ~ 130 lb-in 8 ~ 50 lb-in 50 ~ 175 lb-in
Mechanical life 10,000 hrs. 8,000 hrs. 5,000 hrs. 2500 times
Screw on top 6-32 6-32 8-32 1/4-20 5/16-18 3/8-16 5/16-18 3/8-16
Plug to socket 3/8" square x 5/32" (20 mm square x 4 mm)

Related Products

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Data Acquisition Software for Force Gauges & Torque Gauges
- Full SPC and graphing capabilities
- Automates your data collection
- Provides a running log of all measurements along with a chart of the data as well as statistical information
Torque Tool Tester
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Torque Tool Tester - AWS-QC
- Bidirectional accuracy of ± 1% of indicated reading
MTMDP Torque Tester
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Multi-Range Torque Tester AWS
- Available with 2, 3 or 4 torque transducers
- LED Indicator Shows Active Transducer
Analog Torque Analyzer
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Torque Analyzer - Dial Torque Tester

Complete Kit

The Series I is supplied as complete kit in a foam fitted aluminum carrying case, including 2 smart adapters, ac adapter, NIST-Traceable Calibration certificate and instruction manual.


Buy Now

Item Description Price
Electric Screwdriver torque tester, 7 lb-in / 78 Ncm Capacity
Electric Screwdriver torque tester, 70 lb-in / 7.8 Nm Capacity
Digital Torque Tester, 130 lb-in / 15 Nm Capacity
Replaced by DI-25
Digital Torque Tester, 221 lb-in / 25 Nm Capacity
ISO-17025 Accredited Calibration with Certificate
USB Output Cable for Torque Testers
Data Acquisition Software for Torque Testers with RS-232 or USB ports
Smart Adapter, 10 lb-in, M2.6 (#6-32) screw
Smart Adapter, 10 lb-in, M3 (#6-32) screw
Smart Adapter, 18 lb-in, #8-32 screw
Smart Adapter, 100 lb-in, M6 (#1/4-20) screw
Spring Adapter, 50 lb-in, 5/16-18 screw, For Di-25
Spring Adapter 50~175 lbf-in 3/8 - 16 Screw, For Di-25
Power Adapter for Cedar Torque Testers with USB Output (formerly 3A-066WP12-120)
In stock
1 Week Lead Time (Estimated)
2-3 Week Lead Time (Estimated)
Lead Time Varies, Please contact us for availability.