Tighten and free nuts and bolts with sockets thanks to rotary impact action.

Impact extension bar for socket wrenches Fervi PI401175
Also known as: impact wrench extension, impact socket extension
Key features
- Connection1"
- Length (mm)175
- Diameter (mm)54
What it is
The Fervi PI401175 impact extension bar is an accessory for socket wrenches with a 1" drive, a length of 175 mm and a diameter of 54 mm. The robust one-inch drive makes it suitable for use with high-power impact tools, while the dedicated construction is designed to withstand the heavy stresses typical of heavy-duty tightening.
The socket extension is a rod with a square male drive at one end and a female drive at the other, which extends the drive to reach recessed nuts.
What it is for
Used for repetitive screwdriving into wood, metal and plasterboard, where torque and consistency matter, for vehicle maintenance, in the workshop and on the road and for tightening nuts and bolts where torque must be accurate and repeatable.
How to use it
Fit it between the machine and the socket until the retaining ball clicks, choosing the shortest length needed. The longer it is, the less rigid and accurate it becomes, so keep the machine aligned with the axis. On impact machines, use only impact extensions.
Where it is used
- Mechanical engineering industry
- Mechanical workshops
Technical data
- Connection: 1"
- Length (mm): 175
- Diameter (mm): 54
Who it is for
Designed for auto electricians and mechanics.
Related products
- Impact extension bar for socket wrenches Fervi PI401200
- Quick-release impact extension Fervi PI453250
- Impact driver set Fervi 0044 — from the category Impact Wrenches (Square Drive)
- High-torque cordless impact wrench ONE-KEY Fuel 1″ F drive (M18 ONEFHIWF1) Milwaukee — from the category Cordless Impact Wrenches
- Set of hex sockets in soft foam tray Fervi TM01/024 — from the category Ratchet and Socket Sets
- Browse the whole category: Impact Sockets
Before you order
In your request, please state the length, the diameter, 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 €26,10 – €43,50 + VAT
Incl. 22% VAT: €31,84 – €53,07
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
| Connection | 1" |
|---|---|
| Length (mm) | 175 |
| Diameter (mm) | 54 |
| Item code | PI401175 |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Tighten and loosen bolts and nuts with high-torque rotary impacts.
Tighten and loosen nuts and bolts with sockets, without taking the tool off at every turn.
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.





