Machine and finish metal parts at the bench with turning, grinding and blasting.

93° internal turning tool Fervi CKUNR25
Also known as: boring bar
Key features
- SideD
What it is
93° internal turning tool Fervi CKUNR25. Key specifications: side D.
Turning, milling and threading tools are cutting tools fitted to machine tools or used by hand, such as taps, hobs, insert holders and lathe tools.
What it is for
Used in metalworking, in workshop machining of steel, aluminium and alloy parts and for turning metal parts, both roughing and finishing.
How to use it
Choose the tool according to the material and operation and fit it well centred and tight in the tool holder or tap wrench. Set the speed and feed recommended for that material and lubricate the cut. When tapping by hand, advance half a turn and back off to break the chip. Replace or regrind the tool when the surface finish deteriorates.
Where it is used
- Mechanical engineering industry
- Mechanical workshops
Technical data
- Side: D
Who it is for
Designed for metal fabricators, industrial maintenance technicians and mechanics.
Related products
- 93° internal turning tool Fervi CKUNR32
- 90° internal turning tool Fervi STFCR32
- Universal milling attachment for lathes Fervi 0688 — from the category Workshop Bench Machines and Tools
- Grease Nipple Assortment Fervi 0176 — from the category Industrial Lubrication and Technical Greases
- Depth micrometer, 0.01 mm Fervi M013/0/100 — from the category Analogue Distance Measuring Tools
- Browse the whole category: Turning, Milling and Threading Tools
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 €105 – €175 + VAT
Incl. 22% VAT: €128,10 – €213,50
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 2
| Side | D |
|---|---|
| Item code | CKUNR25 |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Measure lengths, thicknesses and routes on site and in the workshop.
Drive and remove screws, nuts and bolts in assembly and maintenance.
Lubricate chains, bearings and machine components and cool machining operations.
For safety
Protect eyes and face from fragments, dust, splashes and impacts.





