Tighten and loosen nuts and bolts with sockets, without taking the tool off at every turn.

Long Torx insert socket Fervi BN423L025A
Also known as: bit socket, socket bit
What it is
Long socket with Torx bit Fervi BN423L025A is a socket wrench with a Torx-profile bit in long version, available in a wide range of sizes from T20 to T70, all with a bit length of 22 mm. The long configuration allows work on Torx screws located in deep or hard-to-reach recesses.
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
- Size: D2
- T20 (mm): 22
- T25 (mm): 22
- T27 (mm): 22
- T30 (mm): 22
- T40 (mm): 22
- T45 (mm): 22
- T50 (mm): 22
- T55 (mm): 22
- T60 (mm): 22
- T70 (mm): 22
Who it is for
Designed for auto electricians and mechanics.
Related products
- Socket with XZN insert Fervi BN443N006A
- Socket with Torx insert Fervi BN423N025A
- Ergonomic ratchet Fervi — from the category Ratchets
- Ball-end extension Fervi EN404N038A — from the category Ratchet and Socket Sets
- Impact extension bar for socket wrenches Fervi PI403125 — from the category Impact Sockets
- Browse the whole category: Socket Wrenches
Before you order
In your request, please state the dimensions 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.
Specifications 12
| Size | D2 |
|---|---|
| T20 (mm) | 22 |
| T25 (mm) | 22 |
| T27 (mm) | 22 |
| T30 (mm) | 22 |
| T40 (mm) | 22 |
| T45 (mm) | 22 |
| T50 (mm) | 22 |
| T55 (mm) | 22 |
| T60 (mm) | 22 |
| T70 (mm) | 22 |
| Item code | BN424L020A |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Lubricate, free up and protect against rust when sprayed directly onto the part.
Keep tools and small parts organised and secure during transport.
Tighten and loosen nuts and bolts with the open end or the polygonal ring end.
For safety
Protect hands from abrasion, dirt, liquids and minor cuts while keeping a firm grip.





