Tighten and loosen nuts and bolts when fitted to the ratchet, without damaging the corners.

Ergonomic ratchet Fervi CN450N1/4A
Also known as: ratchet wrench, socket wrench
Key features
- Square connection1/4"
- No. of teeth72
- Weight (kg)0,13
- Packaging dimensions (mm)200 × 70 × 27
What it is
Ergonomic ratchet Fervi CN450N1/4A. Key specifications: square connection 1/4", no. of teeth 72, weight (kg) 0,13.
The ratchet is a wrench with a click mechanism, manual, cordless or pneumatic, that tightens and loosens nuts and bolts using sockets fitted to the square drive.
What it is for
Used for tightening nuts and bolts where torque must be accurate and repeatable.
How to use it
Fit the socket of the exact size onto the square drive and select the direction of rotation with the selector. Work with the socket pushed fully onto the nut. With cordless or pneumatic models, run the nut down and finish tightening by hand, or with a torque wrench if a precise torque is required; pneumatic models connect to compressed air with the quick coupling and are lubricated from time to time. Do not extend the handle with tubes to force seized nuts.
Where it is used
- Building services
- Mechanical engineering industry
- Mechanical workshops
Technical data
- Square connection: 1/4"
- No. of teeth: 72
- Weight (kg): 0,13
- Packaging dimensions (mm): 200 × 70 × 27
Who it is for
Designed for auto electricians and mechanics.
Related products
- Ergonomic ratchet Fervi CN450N3/8A
- Ergonomic ratchet Fervi CN450N1/2A
- Bi-hex socket, standard series, Fervi BN4P3N028A — from the category Socket Wrenches
- Ball-end extension Fervi EN404N038A — from the category Ratchet and Socket Sets
- Battery 20V 2Ah for power tools Fervi FB20LB3A2-E — from the category Power Tool Batteries and Chargers
- Browse the whole category: Ratchets
Before you order
In your request, please state the connection type and the quantities required, so we can give you the right quotation first time.
For prices and availability, request a quote from AMES Srl: we will reply with our quotation, delivery times and, where needed, an equivalent technical alternative.
Indicative price €16,38 – €27,30 + VAT
Incl. 22% VAT: €19,98 – €33,31
Indicative, excluding VAT, depends on quantity, ex works: the final price is the one in your quote
Source: Listino Fervi (fervi.com) · updated 21/07/2026
Specifications 4
| Square connection | 1/4" |
|---|---|
| No. of teeth | 72 |
| Weight (kg) | 0,13 |
| Packaging dimensions (mm) | 200 × 70 × 27 |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Tighten and loosen nuts and bolts with the open end or the polygonal ring end.
Transmit the torque of the impact driver to nuts and bolts without breaking.
Lubricate, free up and protect against rust when sprayed directly onto the part.
For safety
Protect hands from abrasion, dirt, liquids and minor cuts while keeping a firm grip.





