6Pcs Precision Diamond Needle File Set for Hard Metals

Product Introduction

The 6Pcs Diamond File Set is designed for high-precision shaping, deburring, and surface finishing on hard and brittle materials. Electroplated with premium 150 µm artificial diamond particles, these mini needle files offer exceptional cutting efficiency and resistance to wear. Featuring six essential profiles and comfortable PP handles, this set is the ideal solution for toolmakers, machinists, jewelers, and advanced DIYers working with hardened steel, glass, ceramic, or carbide.

Product Features

High-efficiency filing: Files are coated with artificial diamond of 150 µm particle size, ensuring fast material removal and smooth, precise work.

Various sizes & working lengths: Work faces measure 50 mm (C4 size) and 70 mm (C5 size) to easily adapt to different delicate tasks and narrow spaces.

Durable use: Specially engineered for filing ultra-high-hardness, quenched, or nitrided tools, carbide dies, glass, and tile.

Ergonomic handle: Handles made of premium PP material provide a comfortable, non-slip, and secure grip, reducing hand fatigue during meticulous operations.

Set Includes

Square file × 1: For square holes, slots, and flat inner angles.

Round file × 1: For enlarging round holes and curved surfaces.

Half-round file × 1: Ideal for both flat and concave surface shaping.

Triangular file × 1: For sharp corners, angles, and narrow grooves.

Flat-head file × 1: For general flat area smoothing and shaping.

Pointed flat file × 1: For detailed filing in narrow gaps and micro-edges.

Product Specifications

Application

Tool & Die Making: Deburring and polishing quenched molds, carbide tools, and precision dies.

Crafts & Jewelry: Fine filing of glass, jade, amber, gemstones, and precious metals.

Electronics & Model Making: Smoothing 3D prints, PCB boards, and small plastic or metal hobby components.

Why Choose Us

Uniform Diamond Coating: Electroplated with strict quality control to prevent diamond grit from shedding prematurely.

Comprehensive Selection: 6 distinct profiles cover 99% of delicate filing requirements.

Factory-Direct Supply: High production capacity ensures stable inventory, prompt delivery, and competitive B2B wholesale pricing.

OEM & ODM Services

We support full OEM & ODM customization for brand owners and tool distributors:

Custom Packaging: Pouch bags, blister packaging, plastic boxes, or display color boxes with your brand design.

Handle Customization: Custom PP handle colors (Pantone matched) and custom logo printing/embossing.

Grit & Size Options: Adjustable diamond grit size (e.g., 120#, 150#, 200#) and needle sizes based on client specs.

FAQ

Q1: What materials can this 150 µm diamond file set cut?

A: It can effectively cut extremely hard materials including quenched steel, carbide, glass, ceramics, stone, tile, and jade.

Q2: Should I use lubricant or water when using these files?

A: Yes, adding water or light cutting oil during filing acts as a lubricant and coolant, which significantly extends the tool's lifespan and prevents clogged grit.

Q3: How do diamond files differ from regular steel files?

A: Steel files cut using teeth cut directly into the metal body, which can dull quickly on hard metals. Diamond files feature sharp diamond particles electroplated onto the surface, allowing them to abrade ultra-hard materials that regular files cannot touch.

Q4: What is the Minimum Order Quantity (MOQ) for custom OEM packaging?

A: Our standard MOQ for OEM customized packaging (such as custom printed blister cards or pouches) is 1,200 sets.

Q5: Can I request samples before placing a bulk order?

A: Absolutely! We provide samples for quality testing. Please contact our sales team to arrange sample shipments.