Diamond Filer SPN-1380

Diamond Filer SPN-1380 is an everyday professional manicure accessory created to make nail shaping more controlled, efficient, and precise.

Correct filing is one of the most important steps in both natural nail manicures and artificial nail extension services. Even beautifully applied acrylic or gel can look unfinished if the free edge is uneven, the sidewalls are unbalanced, or the overall nail shape lacks symmetry.

The dual-sided filing surface allows technicians to select the appropriate level of abrasiveness according to the task.

The 100-grit side provides a coarser filing action suitable primarily for reducing and shaping stronger artificial nail enhancement materials.

The 180-grit side provides a finer filing action suitable for refining enhancement surfaces and carefully shaping suitable natural nail edges.

Its diamond-style shape gives the technician different working angles, making it convenient for straight filing, sidewall refinement, free-edge shaping, and detailed contour work.

Key Features
Dual-Sided 100/180 Grit: Provides two useful filing strengths in one professional nail tool.
100-Grit Coarse Side: Ideal for stronger shaping and product reduction on artificial nail enhancements.
180-Grit Finer Side: Suitable for refinement, smoothing, and controlled edge shaping.
Diamond-Contoured Shape: Provides multiple filing angles for improved maneuverability.
Professional Nail Shaping: Helps create clean, symmetrical free edges and sidewalls.
Suitable for Artificial Nails: Useful with acrylic, hard gel, builder gel, polygel, and compatible nail-tip systems.
Natural Nail Edge Refinement: The appropriate finer surface can be used carefully on suitable natural nail free edges.
Helps Reduce Extension Length: Makes it easier to shorten artificial nails before final shaping.
Useful for Refill Services: Helps refine existing enhancement material during maintenance appointments.
Suitable for Multiple Nail Shapes: Useful for square, coffin, ballerina, almond, oval, and other professional nail styles.
Manual Filing Control: Allows technicians to feel and visually monitor the amount of material being removed.
Salon Essential: Suitable for professional nail technicians, nail academies, beauty salons, and personal manicure kits.
Easy to Handle: Provides direct control without requiring electrical equipment.
Useful for Final Refinement: Helps correct small irregularities after product application or electric filing.

Step 1 – Assess the Nail

Before filing, determine whether you are working on:

Natural nails • Acrylic • Hard gel • Builder gel • Polygel • Artificial tips.

This determines which grit and filing pressure are appropriate.

Step 2 – Select the Correct Grit

Use the coarser 100-grit side primarily for stronger artificial material and major shape reduction.

Use the finer 180-grit side for more controlled refinement.

Do not automatically use 100 grit for every stage.

Step 3 – Hold the Filer Securely

Grip the filer comfortably without excessive tension.

Support the client's finger with the opposite hand.

A stable working position gives greater control and reduces unnecessary movement.

Step 4 – Shorten the Nail if Required

If an artificial extension is too long, use controlled filing strokes to gradually reduce the free edge.

Check length frequently.

Avoid removing too much material at once.

Step 5 – Shape the Free Edge

File according to the selected nail shape.

For square nails, maintain a straighter free edge.

For oval or almond nails, gradually round or taper the sides.

For coffin nails, maintain controlled tapering with a straighter tip.

Step 6 – Refine the Sidewalls

Check both sides from the top and front.

File carefully until they appear balanced.

Avoid filing deeply into the natural nail's lateral side area.

Step 7 – Refine the Surface if Appropriate

When filing an artificial enhancement surface, use controlled movements.

Do not remain aggressively in one area.

Frequently remove dust and inspect the structure.

Step 8 – Switch to the Finer Side

After completing stronger shaping, use the 180-grit side for final refinement where appropriate.

This helps improve the smoothness of the finished structure.

Step 9 – Remove Filing Dust

Use an appropriate nail dusting brush.

Follow with a lint-free wipe and compatible cleanser where required by the nail system.

Step 10 – Continue the Nail Service

Proceed with the next step, such as:

Gel Polish • Nail Art • Top Coat • Buffing • Enhancement Rebalancing.