Customizable Hot Selling 420 Stainless Steel Files Round Files

Brand	DeepLink
Material	304 Stainless Steel
Product Performance	rust resistance;corrosion resistance; low - intensity magnetism; 0.8% copper content;Zinc - free
Quality	Suitable for use in highly corrosive environments
OEM/ODM	Acceptbal
Logo	Laser printing
Surface Treatment	Optional electrostatic spraying
Packing	By PE bag/EPE foam/custom box/poly wood box or as your request.

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Description
Size

File | 420 Stainless Steel Round File | China Factory

Beryllium bronze Ex IIC striking open-end wrench

Designed for precise inner‑hole finishing of metal workpieces in general‑industry, maintenance, and light‑manufacturing settings, our 420 stainless steel round file delivers reliable performance with practical corrosion resistance. Crafted from 420 stainless steel (a martensitic grade with ~12% chromium), it forms a protective oxide layer to resist atmospheric moisture, fresh water, and mild corrosive environments. Available in 8″ and 10″ lengths, with either a fiberglass handle or stainless steel handle, it is engineered for straightforward handling and consistent results in everyday metalworking tasks.

Ex IIB Ex IIC non-sparking double open-end wrench

Core Product Features & Advantages

1. 420 Stainless Steel for Balanced Corrosion Resistance

Made from 420 stainless steel, our round file offers dependable corrosion resistance for non‑aggressive working conditions. The chromium content supports a stable oxide layer, helping to prevent discoloration and surface issues when exposed to humidity, water, or occasional contact with mild chemicals. Easy to clean after use, it maintains a neat appearance and reliable operation across regular workshop and maintenance environments.

Double open-end non-sparking hand tool for industrial use

2. Precision Machining for Smooth Inner‑hole Trimming

The file body is precision‑machined with evenly spaced teeth, enabling smooth, controlled trimming of metal workpiece inner holes. The design helps minimize burr formation, supporting consistent finish quality and helping to improve the precision of your components. It is well‑suited for general machining, equipment repair, and small‑ to medium‑scale metalworking applications.

Ex-certified non-sparking double box offset wrench

3. Two Handle Options for Comfort and Compatibility

Select between a fiberglass handle or stainless steel handle to suit your workspace and preferences. The fiberglass handle is lightweight and comfortable to grip, supporting extended use without fatigue. The stainless steel handle integrates closely with the file body, aligning with the corrosion‑resistant properties of the 420 steel and performing well in moderately humid conditions.

420 stainless steel round file for general metalworking

4. Factory‑Direct Quality and Supply Consistency

As a Chinese tool manufacturer with decades of experience, we conduct thorough inspections on every round file to ensure consistent performance and reliable quality. We support bulk orders and custom solutions, offering competitive pricing and reliable lead times for distributors, buyers, and project managers worldwide.

Manhole cover hook from 40+ years China tool factory

Wide Application Scenarios

Our 420 stainless steel round file is suitable for a range of tasks, including general mechanical machining, automotive part maintenance, hardware production, precision instrument repair, and light industrial equipment upkeep. Its corrosion resistance and versatile size/handle options make it a go‑to tool for inner‑hole finishing, especially in environments with regular humidity or occasional exposure to non‑aggressive liquids.

Why Choose Our 420 Stainless Steel Round File?

420 Stainless Steel Construction: Delivers practical corrosion resistance for everyday use, supporting long‑term reliability in non‑extreme environments.
Precision Teeth Design: Ensures smooth trimming and helps reduce burrs for cleaner inner‑hole finishes.
8″/10″ Size Options: Fits various workpiece dimensions and workspace constraints.
Fiberglass/Stainless Steel Handles: Balances comfort, durability, and corrosion compatibility.
Factory Direct Pricing: No middleman markup, with bulk order flexibility and consistent quality.

Get the job done efficiently with our 420 stainless steel round file—built for reliable inner‑hole finishing in general metalworking. Contact us today for a free quote and to discuss bulk ordering!

304 stainless steel striking box end wrench for industrial use

FAQ

Q:What can we buy from you?

A:Non-Sparking Safety Tools,304 Stainless Steel Tools,Special Tools,Non-Magnetic Tools.

Q:Can you provide customized products to meet our specific requirements?

A:Absolutely, we offer customization services to tailor our products to the specific needs of our clients.

Q:Can we get some product samples to test?

A:We can definitely arrange for product samples to be sent to you for evaluation.

Q: Why should we buy from you instead of other suppliers?

A:We are a special manufacturer of non-sparking tools and stainless steel tools.We have nearly 30 years experience in this field. We have an R&D team, so we can customize some non – standard products for you.

Q:Are you products certified to any international standards?

A:Yes,Ex IIB/Ex IIC certified,guaranteeing safety and reliability.

Q: How can you guarantee quality?

A:We can always provide a pre-production sample before mass production,and always conduct a final inspection before shipment.

Q:What services can you provide?

A:Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DDP,DDU,Express Delivery,DAF；

Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;

Accepted Payment Type: T/T,PayPal,Western Union,Cash,Escrow;

Language Spoken:English,Chinese. 12-point non-sparking double box offset wrench

Size

8 inch

10 inch

5101A

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