When torque alone won't guarantee the clamp load, measure the angle too. The INSIZE digital angle torque wrench sets a target torque, then tracks the exact degrees of extra rotation — the torque-plus-angle method engineers specify when friction and thread condition make torque-only tightening unreliable. One tool gives you a repeatable, spec-compliant tightening sequence and a clear digital readout of both values.
A torque angle wrench for torque-plus-angle tightening
The INSIZE IST-1W series combines digital torque measurement with digital angle measurement, clockwise and counter-clockwise operation, peak and track modes, and a fixed ratchet head — in torque capacities from 6 N·m through 2,000 N·m depending on model.
Key features of the digital angle torque wrench
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Digital torque and angle measurement — Measures both applied torque and rotational angle for torque-angle tightening procedures.
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Torque accuracy up to ±2% clockwise — Provides controlled torque measurement for precision fastening applications.
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±3% counter-clockwise accuracy — Supports bidirectional torque measurement.
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±2° angle accuracy — Provides angular measurement accuracy when the wrench is rotated through the specified angle.
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Torque + angle tightening sequence — Set the desired torque first, then apply the specified additional rotation angle.
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Clockwise and counter-clockwise operation — Suitable for applications requiring torque measurement in either direction.
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Ratchet head — Allows efficient tightening and repositioning during fastening operations.
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Peak and track modes — Supports both peak-value capture and real-time torque monitoring.
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Multiple measurement units — Torque can be displayed in N·m, in·lb, ft·lb, or kg·cm, with angle displayed in degrees.
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Wide torque-capacity range — Available models cover applications from low-torque fastening through heavy-duty industrial assembly.
Torque + Angle Measurement
Traditional torque tightening controls the amount of rotational force applied to a fastener. Torque-angle tightening adds a second measurement: how far the fastener rotates after reaching a specified torque.
The IST-1W allows the operator to establish the desired torque first. Once the specified torque is reached, the operator sets the required angle and continues rotating the wrench through that angle to apply the additional tightening.
This provides a controlled tightening sequence for applications where both torque and rotational angle are important to the assembly specification.
Precision Torque and Angle Performance
The INSIZE IST-1W series provides:
| Measurement |
Accuracy |
| Clockwise Torque |
±2% |
| Counter-Clockwise Torque |
±3% |
| Angle |
±2° |
| Angle Reference |
90° rotation |
| Torque Modes |
Peak / Track |
| Operation |
Clockwise / Counter-clockwise |
The angle specification is listed by INSIZE as ±2° when rotating 90°.
Available Models
The IST-1W series covers a wide range of industrial torque applications. INSIZE currently lists the following configurations:
| Model |
Torque Range |
Approx. Imperial Range |
| IST-1W30A |
6–30 N·m |
53–266 in·lb |
| IST-1W135A |
27–135 N·m |
239–1,195 in·lb |
| IST-1W200A |
40–200 N·m |
354–1,770 in·lb |
| IST-1W340A |
68–340 N·m |
602–3,009 in·lb |
| IST-1W500A |
100–500 N·m |
885–4,425 in·lb |
| IST-1W850A |
170–850 N·m |
1,504–7,522 in·lb |
| IST-1W1200A |
240–1,200 N·m |
2,124–10,620 in·lb |
| IST-1W1500A |
300–1,500 N·m |
2,655–13,275 in·lb |
| IST-1W2000A |
400–2,000 N·m |
3,540–17,700 in·lb |
CRB Supply currently offers selected configurations of the IST-1W series. The product page currently shows torque-range options corresponding to approximately 40–200 N·m and 68–340 N·m.
Digital Measurement Modes
Peak Mode
Peak mode captures the maximum torque value reached during the tightening operation. This is useful when the maximum applied torque needs to be observed or recorded by the operator.
Track Mode
Track mode provides continuous torque measurement as force is applied, allowing the operator to monitor the torque value throughout the tightening process.
The combination of peak and track modes makes the wrench useful for both controlled tightening and inspection applications.
Measurement Units
The IST-1W supports multiple torque measurement units:
This allows the wrench to be integrated into fastening procedures using either metric or imperial torque specifications.
Where this torque angle wrench is used
The INSIZE Digital Angle Torque Wrench is designed for applications including:
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Torque-angle tightening
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Precision fastener installation
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Automotive assembly
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Machinery assembly
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Industrial equipment manufacturing
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Engine and drivetrain assembly
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Heavy equipment maintenance
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Production fastening
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Quality control
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Torque verification
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Controlled maintenance procedures
Industries
The IST-1W series is suitable for professional environments including:
Why Use Torque-Angle Tightening?
Torque alone can be affected by factors such as friction, lubrication, thread condition, and fastener surface characteristics.
A torque-angle procedure adds rotational displacement as another controlled parameter. This can make the tightening process more repeatable for assemblies designed around a specified torque followed by a defined angular rotation.
The IST-1W is therefore particularly valuable for engineering-driven fastening processes where the tightening sequence itself is part of the assembly specification.
Technical Specifications
| Specification |
IST-1W Series |
| Product Type |
Digital Angle Torque Wrench |
| Torque Measurement |
Digital |
| Angle Measurement |
Digital |
| Clockwise Accuracy |
±2% |
| Counter-Clockwise Accuracy |
±3% |
| Angle Accuracy |
±2° |
| Operation |
Clockwise / Counter-clockwise |
| Working Modes |
Peak / Track |
| Head Type |
Fixed ratchet head |
| Torque Units |
N·m, in·lb, ft·lb, kg·cm |
| Angle Unit |
Degree |
| Available Torque Range |
6–2,000 N·m, depending on model |
INSIZE identifies the IST-1W models as digital torque wrenches with fixed ratchet heads and digital display presentation.
Selecting the Correct Model
Selecting the appropriate IST-1W configuration should be based primarily on the required torque range of the fastening application.
Low- to medium-torque applications:
The IST-1W30A and IST-1W135A cover applications from 6 to 135 N·m.
General industrial fastening:
The IST-1W200A and IST-1W340A provide 40–340 N·m of torque capacity.
Higher-torque applications:
The IST-1W500A through IST-1W2000A extend the series into heavy-duty industrial fastening applications.
For best measurement performance, the required operating torque should fall appropriately within the selected wrench's rated range rather than routinely operating at the extreme end of the scale.
Technical Documentation
For complete manufacturer specifications and operating information:
INSIZE IST-1W Digital Angle Torque Wrench — Technical Documentation:
https://www.insize.com/pdf-viewer?=/PDF/IST-1W.pdf
Need Help Selecting the Right Torque Wrench?
Torque range, tightening procedure, required angle, drive configuration, and application requirements should all be considered when selecting a torque-angle wrench.
Contact CRB Supply before ordering if you need help selecting the correct INSIZE IST-1W model for your torque-angle tightening or verification application.
