FerviErgonomic ratchet Fervi CN450N3/8ACode CN450N3/8A
Tighten and loosen nuts and bolts with sockets, without taking the tool off at every turn.
All Fervi products
Set of articulated double socket wrenches Fervi 0340S
Key features
- Sizes8x9-10x11-12x13-14x15-16x17-18x19 mm
- Packaging dimensions (mm)300 × 210 × 50
- Gross weight (kg)1,65
- EAN8012667340964
What it is
The Fervi 0340S flexible double socket wrench set is a range of double-ended socket wrenches with a flexible head, available in the combined sizes 8x9, 10x11, 12x13, 14x15, 16x17 and 18x19 mm. The flexible joint allows you to work on bolts at awkward angles, where a rigid wrench could not properly reach the nut head. The set has a gross weight of 1.65 kg and a pack size of 300x210x50 mm.
A socket is a cylinder with a hexagonal or bi-hex profile that fits over the nut and mounts on a ratchet; the category also includes box spanners and T-handle wrenches.
What it is for
Used for tightening nuts and bolts where torque must be accurate and repeatable.
How to use it
Choose a socket of the exact size with the ratchet's drive, standard or deep depending on how far the bolt protrudes. Push it fully onto the nut and pull the handle smoothly, without jerking. Chrome sockets are for hand use only: impact wrenches require impact sockets.
Where it is used
- Mechanical engineering industry
- Mechanical workshops
Technical data
- Sizes: 8x9-10x11-12x13-14x15-16x17-18x19 mm
- Packaging dimensions (mm): 300 × 210 × 50
- Gross weight (kg): 1,65
Who it is for
Designed for auto electricians, industrial maintenance technicians and mechanics.
Related products
- Set of double hexagonal ring spanners Fervi 0393/A
- Set of Torx socket wrenches Fervi 0195
- Ergonomic ratchet Fervi — from the category Ratchets
- Set of polygonal sockets in soft foam tray Fervi TM01/025 — from the category Ratchet and Socket Sets
- Connector for impact socket wrenches Fervi RI4032N — from the category Impact Sockets
- Browse the whole category: Socket Wrenches
Before you order
Tell us the quantities you need and the intended use: if there is a more suitable version, or an equivalent available sooner, we will let you know.
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 €36,78 – €61,30 + VAT
Incl. 22% VAT: €44,87 – €74,79
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
Quantity
Specifications 5
| Sizes | 8x9-10x11-12x13-14x15-16x17-18x19 mm |
|---|---|
| Packaging dimensions (mm) | 300 × 210 × 50 |
| Gross weight (kg) | 1,65 |
| EAN | 8012667340964 |
| Item code | 0340S |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
FerviDry PTFE (Teflon) lubricant Fervi
Lubricate, free up and protect against rust when sprayed directly onto the part.
FerviMagnetic socket holder for tool trolleys Fervi 0466/PBCode 0466/PB
Keep tools and small parts organised and secure during transport.
FerviSet of polished chrome combination spanners Fervi 0208Code 0208
Tighten and loosen nuts and bolts with the open end or the polygonal ring end.
For safety
PortwestDouble-dipped nitrile glove Grip 15, Portwest AP36Code AP36
Protect hands from abrasion, dirt, liquids and minor cuts while keeping a firm grip.