"Smooth long as much a part of me as any tool you should hang on to."verified buyer, 10/04/2026
6" Full-Round Swiss No4 Cut Impressioning File
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UKBumpKeys
6" Full-Round Swiss No4 Cut Impressioning File
£ 1599
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About This Item
About This Item
Opis
Opis
Free UK delivery over £30
Royal Mail options
30-day easy returns
European delivery available
Impressioning file
A 6 inch full-round Swiss No4 cut file for key impressioning
This 6 inch full-round Swiss No4 cut impressioning file is for key impressioning work. The No4 cut gives a fine, controlled file choice for shaping blank keys during bench practice.
6 inchfile
SwissNo4 cut
Fullround
Keywork
Why buy this
Buy this when impressioning needs a proper file
Impressioning is a precision skill. A purpose-chosen file gives you cleaner control on the blank than a general hardware file, especially when you are learning how marks, pressure and metal removal relate.
Fine cut
Swiss No4 cut is suited to controlled key work.
Full-round profile
Useful where a rounded file profile is the right shape.
Bench practice
A practical tool for impressioning and key-work learners.
Use route
Treat it as a precision bench tool
Use the file with blanks that suit the lock you are impressioning. Work slowly, check often and avoid removing more metal than the job requires.
- Use for key impressioning practice.
- Pair with correct blanks and careful marking.
- Keep file strokes controlled and deliberate.
Helpful next step: impressioning tools.
Product details
What to know before you choose
| Brand | UKBumpKeys |
| Product type | Impressioning file |
| Length | 6 inch |
| Cut | Swiss No4 |
| Profile | Full round |
Questions
Quick answers
Is this for beginners?
It is best for learners who are specifically studying impressioning.
Can I use any blank?
Use blanks that match the lock and keyway.
Why No4 cut?
It gives a finer working feel than a coarse general file.
Is this a pick?
This is a key impressioning and key-work tool.
Use the right file for impressioning practice
A fine full-round file gives you the control needed for careful key work.
Payment & Security
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