HAZET · TOQUE WRENCH
HAZET 5107-3CT Torque Wrench
1–9 N·m HAZET Torque Wrench, Torque Accuracy ±4%, 1/4″ Square Drive
Key Features
- Torque range: 1–9 N·m
- Torque accuracy: ±4% of the set value during clockwise tightening
- Square drive: 1/4″
- Scale graduation: 0.1 N·m
- Reversible ratchet with 20 teeth
- 18° ratchet opening angle
- Audible and tactile signal when the set torque is reached
- Ergonomic torque adjustment handle and locking mechanism
- Easy-to-read, laser-marked scale
- Robust construction for demanding workshop conditions
- Serial number and factory calibration certificate
- Sturdy Hexa plastic box
- Complies with DIN EN ISO 6789-2:2017-07
- Length: 234 mm · Weight: 0.42 kg
- Manufacturer / Country of origin: HAZET / Germany
- Technical support, spare parts and calibration services provided by Surkon

Controlled Tightening at Low Torque
The HAZET 5107-3CT is an adjustable torque wrench for controlled tightening within a range of 1–9 N·m. It is suitable for appropriate connections on bicycles, motorcycles and tyre pressure monitoring systems. Select the torque setting according to the connection manufacturer’s instructions.
The 1/4″ square drive accepts sockets with the same drive size. The reversible ratchet has 20 teeth and an opening angle of 18°.
Torque accuracy during clockwise tightening is ±4% of the set torque value. The scale graduation is 0.1 N·m. These values represent different technical specifications.
The torque is adjusted by turning the handle. The locking mechanism secures the selected setting. The laser-marked scale makes the torque value easy to read.
An audible and tactile signal indicates when the set torque is reached. Stop tightening when this signal occurs. A reversible ratchet does not mean that the specified torque accuracy applies to anticlockwise tightening.
Manufactured in Germany, the wrench is supplied with a serial number and a HAZET factory calibration certificate in a sturdy Hexa plastic box. Technical support, spare parts and calibration services in Türkiye are provided by Surkon.
Model Comparison
| Model | Torque Range (N·m) |
Square Drive | Torque Accuracy | Ratchet Tooth Count | Ratchet Opening Angle | Actuating Force* (kg) |
a (mm) |
b (mm) |
Length (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 5107-3CT | 1–9 | 1/4" | ±%4 | 20 | 18° | 0,6–5,5 | 10,2 | 24 | 234 |
| 5108-3CT | 2,5–25 | 1/4" | ±%3 | 20 | 18° | 1,4–15,3 | 10,2 | 24 | 234 |
| 5110-3CT | 10–60 | 3/8" | ±%3 | 30 | 12° | 3,9–25,0 | 14,5 | 32 | 320 |
| 5111-3CT | 20–120 | 3/8" | ±%3 | 30 | 12° | 6,9–43,5 | 14,5 | 32 | 375 |
| 5120-3CT | 10–60 | 1/2" | ±%3 | 30 | 12° | 3,9–25,0 | 14,5 | 32 | 320 |
| 5121-3CT | 20–120 | 1/2" | ±%3 | 32 | 11.25° | 6,1–38,0 | 19,6 | 44 | 421 |
| 5122-3CT | 40–200 | 1/2" | ±%3 | 32 | 11.25° | 9,4–49,5 | 19,6 | 44 | 519 |
| 5123-3CT | 60–320 | 1/2" | ±%3 | 32 | 11.25° | 11,3–62,2 | 19,6 | 44 | 628 |
| 5143-3CT | 100–400 | 1/2" | ±%3 | 32 | 11.25° | 14,8–60,3 | 28,5 | 64 | 790 |
| 5145-3CT | 300–800 | 3/4" | ±%3 | 32 | 11.25° | 26,2–71,0 | 28,5 | 64 | 1271 |
* Indicates the minimum–maximum force required at the handle to achieve the torque values within the specified range. a: head thickness; b: head width.
On smaller screens, you can scroll the table horizontally.
Product Detail Image


Documents
HAZET 5107-3CT – Frequently Asked Questions
What is the HAZET 5107-3CT used for?
It is used to tighten connections to a specified torque between 1 and 9 N·m. Applications include suitable connections on bicycles, motorcycles and tyre pressure monitoring systems.
What is the difference between the 5107-3CT and 5108-3CT?
The 5107-3CT has a torque range of 1–9 N·m and a torque accuracy of ±4%. The 5108-3CT has a torque range of 2.5–25 N·m and a torque accuracy of ±3%. Both models have a 1/4″ square drive.
What happens when the set torque is reached?
An audible and tactile signal occurs. Stop tightening when you receive this signal; do not continue applying force.
Does it also provide torque control during anticlockwise tightening?
The specified torque accuracy applies to clockwise tightening only. HAZET recommends torque wrenches with interchangeable insert heads for controlled anticlockwise tightening.
Which sockets are compatible?
It accepts sockets with a 1/4″ square drive. Select the socket size and profile to match the screw or nut head.
What is the scale graduation?
The scale value is 0.1 N·m. This value represents the adjustment step on the scale (steps such as 5 → 5.10 → 5.20 N·m); it is not the same feature as the ±4% accuracy value.
Are calibration services and technical support available?
Yes. Surkon is an authorised HAZET dealer and technical support provider in Türkiye. Repair, maintenance and calibration services for HAZET equipment are provided by Surkon. An in-house calibration certificate is issued for HAZET torque wrenches following repair and maintenance. TÜRKAK-accredited calibration services are available on request at the Surkon calibration laboratory.
Scope of Delivery
- HAZET 5107-3CT torque wrench
- HAZET factory calibration certificate
- Sturdy Hexa plastic box
Operating Instructions
- Identify the required torque from the connection manufacturer’s instructions.
- Unlock the torque adjustment mechanism, set the required torque using the scale, then lock the setting.
- Fit a suitable socket with a 1/4″ square drive and select clockwise tightening.
- Apply steady force at the handle. Stop tightening when the audible and tactile signal occurs.
For detailed operating instructions, refer to the HAZET operating instructions above.
Product Video – HAZET 5000-3CT Torque Wrench Series
Specifications
| Brand | Hazet |
| Operation Type | Manual |
| Accuracy | ±4% (clockwise) |
| Scale | 0.1 N·m |
| Drive Size | 1/4″ |
| Torque Setting Type | Adjustable |
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