Astonishing 240/240 Traditional Straight Nail File — the essential file for natural nail prep. If you're applying gel, BIAB, gel polish, or any product that needs to bond to the natural nail, this is the file that prepares the surface perfectly every single time.
The 240/240 grit gently removes the shine from the nail plate and creates a fine texture for product to grip onto — without thinning, scratching, or damaging the natural nail. It's the finest grit in the straight file range, which makes it the safest choice for clients with thin, weak, brittle, or sensitive nail plates. Where a 180 might feel too aggressive on a delicate nail, the 240 does the job with zero risk.
This is also your go-to finishing file. After shaping an enhancement with a coarser grit, the 240 smooths away any filing marks or scratches left behind, leaving a clean, even surface ready for colour. It takes rough shaping and turns it into a polished, professional finish — a small step that makes a visible difference in the quality of your work.
Every set you apply starts with prep. And every good prep starts with the right file. The 240 is where your product adhesion begins — skip it or use the wrong grit and you're gambling with retention from the very first step.
The straight shape provides full, even contact across the nail surface. Astonishing's balanced structure — plastic core, sponge padding, and premium file paper — ensures smooth, effortless filing with consistent grit quality throughout the life of the file. Built for professional daily use and easy to sanitise.
Best for:
Natural nail prep before gel, BIAB, and gel polish
Removing shine from the nail plate for product adhesion
Smoothing and finishing after coarser filing
Working on thin, weak, or damaged nails
Final surface refinement before colour application
Prepping delicate or sensitive nail plates
Choose the correct file grit for each service. Remove any sharp edges from the file before use to protect the soft tissue and skin surrounding the natural nail.
Astonishing 240/240 Traditional Straight Nail File — the essential file for natural nail prep. If you're applying gel, BIAB, gel polish, or any product that needs to bond to the natural nail, this is the file that prepares the surface perfectly every single time.
The 240/240 grit gently removes the shine from the nail plate and creates a fine texture for product to grip onto — without thinning, scratching, or damaging the natural nail. It's the finest grit in the straight file range, which makes it the safest choice for clients with thin, weak, brittle, or sensitive nail plates. Where a 180 might feel too aggressive on a delicate nail, the 240 does the job with zero risk.
This is also your go-to finishing file. After shaping an enhancement with a coarser grit, the 240 smooths away any filing marks or scratches left behind, leaving a clean, even surface ready for colour. It takes rough shaping and turns it into a polished, professional finish — a small step that makes a visible difference in the quality of your work.
Every set you apply starts with prep. And every good prep starts with the right file. The 240 is where your product adhesion begins — skip it or use the wrong grit and you're gambling with retention from the very first step.
The straight shape provides full, even contact across the nail surface. Astonishing's balanced structure — plastic core, sponge padding, and premium file paper — ensures smooth, effortless filing with consistent grit quality throughout the life of the file. Built for professional daily use and easy to sanitise.
Best for:
Natural nail prep before gel, BIAB, and gel polish
Removing shine from the nail plate for product adhesion
Smoothing and finishing after coarser filing
Working on thin, weak, or damaged nails
Final surface refinement before colour application
Prepping delicate or sensitive nail plates
Choose the correct file grit for each service. Remove any sharp edges from the file before use to protect the soft tissue and skin surrounding the natural nail.
The highest quality files with the perfect selection of grit full professional nail services. These files allows the nail professional to file the natural nail and nail enhancement accurately and with ease.
