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Precision Nail Drill Bits
Engineered for Excellence

ISO9001 Certified Manufacturer of Carbide, Diamond & Tungsten Steel Rotary Files for Nail Art, Industrial, and Dental Applications

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SJ Drillbit Factory

About SJ Drillbit

Jiangyin Shuangjia Tools Co., Ltd. is a professional rotary file manufacturer integrating production, research and development, sales, and service. With over 19 years of industry experience, we have established ourselves as a leading supplier of high-performance nail drill bits and rotary files.

More than 95% of our products are exported to international markets, serving professional nail technicians, beauty salons, and industrial clients worldwide. Our commitment to innovation, quality, and customer satisfaction has positioned us at the forefront of the industry.

19+
Years of Experience
95%
Global Export Rate
ISO9001
Quality Certified
100+
Product Variants

Why Choose SJ Drillbit

We combine advanced manufacturing technology with rigorous quality control to deliver superior rotary files that professionals trust.

Quality Assurance

ISO9001 certified quality system ensures every product meets international standards for performance and durability.

Dedicated Team

Our experienced R&D and production team continuously innovates to meet evolving market demands and client specifications.

Competitive Products

We offer a comprehensive range of rotary files that lead the industry in performance, longevity, and value.

Excellent Service

From consultation to after-sales support, we provide responsive, professional service tailored to your business needs.

Our Products

Premium rotary files and nail drill bits engineered for precision, durability, and professional results. Trusted by technicians worldwide.

Carbide Nail Bit

Carbide Nail Bit L01508S

Tungsten steel construction with golden coating for enhanced durability and smooth operation.

Carbide Nail Bits
5 in 1 Nail Bit

5 in 1 Nail Bit BM0715-RD6

Multi-functional design combines five essential shapes in one bit for maximum versatility.

5 in 1
Dust Proof Bit

Dust Proof Straight Cut Bit

Bullet shape design with dust-proof technology for clean, efficient gel removal.

Dust Proof Bits
Diamond Nail Bit

Diamond Nail Bit Series

Premium diamond-coated bits for aggressive material removal with exceptional longevity.

Diamond Nail Bits
Sanding Band

Shuangjia Sanding Band SJ-170K

High-quality sanding bands with consistent grit for smooth nail surface preparation.

Sanding Bands
Carbide Burr

Professional Carbide Burr

Industrial-grade carbide burrs for precision material removal in various applications.

Carbide Burr
Large Barrel Bit

Large Barrel Bit Golden Coating

Super long flute series with golden coating for extended lifespan and efficient filing.

Nail Bits
3/32'' Carbide Bit

3/32'' Carbide Drill Bit

Precision-sized carbide bit ideal for detailed nail work and precise material removal.

Carbide Nail Bits
Extra Fine Bit

Extra Fine Uncoated Bit

Ultra-fine grinding bit for delicate finishing work and surface smoothing.

Carbide Nail Bits
Three Coarseness Bit

Three Coarseness in One Bit

Safety manicure bit with three different coarseness levels for comprehensive nail shaping.

5 in 1
Gel Remove Tool

Professional Gel Remove Tool

Small barrel tungsten carbide bit specifically designed for efficient gel polish removal.

Carbide Nail Bits
Nail Bits Set

Professional Nail Bits Set

Comprehensive collection of essential bits for nail technicians and beauty professionals.

Nail Bits Set

Advanced Technology & Materials

Our products are engineered using premium materials and cutting-edge manufacturing processes to ensure superior performance and longevity.

Precision Engineering

Tungsten Carbide Construction

Our carbide bits are made from high-grade tungsten steel, offering exceptional hardness and resistance to wear, ensuring long-lasting performance even under heavy use.

Precision Engineering

Each rotary file is manufactured with tight tolerances to ensure perfect balance and smooth operation, reducing vibration and providing a comfortable user experience.

Specialized Coatings

Golden and other specialized coatings enhance durability, reduce friction, and prevent material buildup, maintaining optimal performance throughout the bit's lifespan.

Versatile Applications

Our products serve not only the nail industry but also industrial and dental applications, demonstrating the versatility and quality of our engineering.

19+
Years in Business
95%
Global Reach
100+
Product Variants
ISO9001
Certified Quality

Frequently Asked Questions

Everything you need to know about our products and services

What materials are your nail drill bits made from?

Our nail drill bits are primarily made from high-quality tungsten carbide, known for its exceptional hardness and durability. We also offer diamond-coated bits for applications requiring aggressive material removal.

Are your products suitable for professional use?

Absolutely. Our products are designed specifically for professional nail technicians, beauty salons, and industrial applications. They are built to withstand heavy daily use while maintaining performance.

Do you offer custom manufacturing services?

Yes, we provide OEM and ODM services. Our R&D team can work with you to develop custom rotary files according to your specific requirements, including size, shape, coating, and packaging.

What is your minimum order quantity?

We are flexible with order quantities. While we specialize in wholesale, we can accommodate various order sizes. Please contact us directly to discuss your specific needs.

How do I maintain and clean your drill bits?

For carbide bits, clean with a soft brush and mild soap after use. Avoid harsh chemicals. For diamond bits, use a dedicated diamond bit cleaner. Always ensure bits are completely dry before storage to prevent corrosion.

What markets do you ship to?

We ship globally. Over 95% of our production is exported to markets including North America, Europe, Asia, Australia, and South America. We work with reliable logistics partners to ensure timely delivery.

Get in Touch

Ready to partner with a trusted manufacturer of premium rotary files? Contact us today to discuss your requirements, request samples, or inquire about wholesale pricing.

Email

[email protected]

Phone

+86-18626098188

Location

Jiangyin, Jiangsu, China

Visit Our Official Website

For product catalogs, detailed specifications, and to place orders, please visit our official website.

Visit Official Website

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