TOPTUL 5PCS Diamond Needle File Set – 160mm #150 Grit

Complete precise finishing tasks with better flexibility using the TOPTUL GNBA0501 5PCS Diamond Needle File Set, featuring five precision files in different shapes for fine filing, sharp edge finishing, cut reshaping, and drilled hole adjustment.

The set features a #150 grit diamond coating on the cutting surface, making it suitable for finishing and controlled adjustment tasks that require better precision than large standard files. Each file has a 4 mm diameter, an overall length of 160 mm, and a 65 mm diamond-coated surface.

The set includes five essential shapes: round, half-round, square, triangle, and flat. This gives technicians multiple options for working on holes, corners, edges, small surfaces, and details that require accurate manual finishing.

If you are looking for a TOPTUL 5-piece file set or a diamond needle file set for workshop and precise technical applications, this set provides a practical choice for precision maintenance, hand adjustment, and small-part finishing.

Package Contents

• Round Diamond Needle File.
• Part Number: SDNB0402.
• Half Round Diamond Needle File.
• Part Number: SDNB0403.
• Square Diamond Needle File.
• Part Number: SDNB0404.
• Triangle Diamond Needle File.
• Part Number: SDNB0405.
• Flat Diamond Needle File.
• Part Number: SDNB0406.

Key Features

• 5-piece diamond needle file set.
• Suitable for fine filing and precision finishing.
• Helps finish sharp edges.
• Suitable for reshaping small cuts.
• Helps enlarge or refine drilled holes.
• Includes five different shapes for precise applications.
• #150 grit diamond-coated surface.
• 4 mm file diameter.
• 160 mm overall length.
• 65 mm diamond-coated surface length.
• Suitable for workshops, craft work, and precision maintenance.
• Genuine TOPTUL professional tool set.

Applications

• Finishing sharp edges.
• Reshaping precise cuts.
• Enlarging or refining drilled holes.
• Fine filing work.
• Smoothing small corners and details.
• Finishing small surfaces.
• Technical workshop use.
• Precision maintenance work.
• Manual adjustment of small parts.
• Equipping precision finishing tool boxes.

Technical Specifications

• Brand: TOPTUL.
• Product Number: GNBA0501.
• Product Type: Diamond Needle File Set.
• Technical Name: 5PCS Diamond Needle File Set.
• Number of Pieces: 5 pieces.
• File Type: Diamond Needle Files.
• Diameter: 4 mm.
• Overall Length: 160 mm.
• Diamond-Coated Surface Length: 65 mm.
• Diamond Coating Grade: #150 grit.
• Manufacturing Quality: High Quality Precision Machined Diamond Needle Files.

• Included Shapes:
• SDNB0402: Round Diamond Needle File.
• SDNB0403: Half Round Diamond Needle File.
• SDNB0404: Square Diamond Needle File.
• SDNB0405: Triangle Diamond Needle File.
• SDNB0406: Flat Diamond Needle File.

• Recommended Use: Precision finishing, fine filing, edge and hole adjustment.

What Is a Diamond Needle File Set?

A diamond needle file set is a group of precision files with diamond-coated cutting surfaces. It is used for finishing and adjustment tasks that require higher accuracy and better control.

Compared with standard files, diamond files are useful for working on small details, edges, and openings during manual finishing tasks.

When Do You Need a Diamond Needle File?

A diamond needle file is useful when working on a small part, narrow opening, or precise corner that cannot be reached with a large file.

It is also useful for removing sharp edges after cutting or drilling, or for gradually reshaping a small opening or groove with better control.

Difference Between the File Shapes in the Set

The flat file is suitable for small surfaces and straight edges.

The round file is suitable for holes and internal curves.

The half-round file combines a flat side and a curved side, making it suitable for both flat and curved surfaces.

The square file is suitable for internal corners and square-like grooves.

The triangle file is suitable for sharp corners and narrow details that require precise access.

What Is the Benefit of #150 Grit?

The #150 grit indicates the coarseness of the diamond-coated surface. It is suitable for finishing and precise adjustment tasks that require balanced material removal without being too aggressive like heavy removal tools.

This makes the set suitable for fine finishing, edge refining, and gradual adjustment of small holes.

Is the Set Suitable for Edge Finishing and Hole Reshaping?

Yes. The set is suitable for these tasks because it includes multiple shapes that help work on edges, holes, corners, and precise cuts. Choosing the correct file shape helps achieve better results and greater control during work.

How to Use the Diamond Needle File Set

1. Select the correct file shape according to the surface or opening.
2. Secure the workpiece before starting.
3. Use light, steady strokes without excessive pressure.
4. Use the round file for holes and internal curves.
5. Use the flat file for edges and small flat surfaces.
6. Use the triangle or square file for precise corners and grooves.
7. Clean the file surface after use to remove material particles.
8. Store the files in a dry and organised place to preserve the coating surface.

Frequently Asked Questions

What is this diamond file set used for?

It is used for fine filing, sharp edge finishing, cut reshaping, and enlarging or refining drilled holes in precision applications.

How many pieces are included?

The set includes 5 pieces in different shapes: round, half-round, square, triangle, and flat.

What are the file dimensions?

Each file has a 4 mm diameter, 160 mm overall length, and 65 mm diamond-coated surface length.

What is the diamond coating grade?

The diamond coating grade is #150 grit.

Is the set suitable for workshops?

Yes. The set is suitable for workshops, craft work, and precision maintenance tasks that need small and varied files.

What is the difference between this set and a standard metal file set?

The diamond needle file set is designed for precision work and fine finishing, while a standard metal file set is usually larger and more suitable for general filing and heavier material removal.