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Wholesale ANSI Standard 21pc & 29pc HSS Drill Bit Index Set – China Factory Featured Image
  • Wholesale ANSI Standard 21pc & 29pc HSS Drill Bit Index Set – China Factory
  • Wholesale ANSI Standard 21pc & 29pc HSS Drill Bit Index Set – China Factory
  • Wholesale ANSI Standard 21pc & 29pc HSS Drill Bit Index Set – China Factory
  • Wholesale ANSI Standard 21pc & 29pc HSS Drill Bit Index Set – China Factory

Wholesale ANSI Standard 21pc & 29pc HSS Drill Bit Index Set – China Factory

Specification:

Standard: ANSI B94.11M (Jobber Length)
Material: HSS-E M35 (5% Cobalt) / HSS M2 (6542) / HSS 4341 / 4241
Manufacturing: 100% Fully Ground
Point Angle: 135 Split Point (Self-Centering) /118 Standard Point / Custom
Tip Type: Standard / Custom
Surface Coating: Amber / Black Oxide / Bright / Black & Gold
Hardness: HRC60-67 (Depending on material grade)
Shank Type: Straight Shank / Tri-Flat Shank
Application: Stainless Steel, Alloy Steel, Cast Iron, Aluminum, Wood, Plastics, etc


Product Detail

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Built for Industrial Performance

Jiacheng Tools presents our premium 21-piece and 29-piece HSS Fractional Drill Bit Sets, engineered for precision, durability, and high-speed efficiency. Whether you are a professional contractor or an industrial distributor, these sets provide a comprehensive solution for drilling into stainless steel, alloy steel, cast iron, and non-ferrous metals.

configuration size range

Key Product Advantages

◎ Heavy-Duty Metal Index Case: Our sets are housed in a rugged, industrial-grade steel box. Designed to withstand harsh workshop environments, the metal index provides organized storage and superior protection for your tools, ensuring they remain sharp and ready for the next job.

◎ Complete Fractional Size Range: We offer two essential configurations to cover every professional need:
• 21-Piece Set: Includes sizes from 1/16" to 3/8" in 1/64" increments.
• 29-Piece Set: Offers a full range from 1/16" to 1/2" in 1/64" increments, providing the ultimate versatility for heavy-duty projects.

◎ Precision Manufacturing (ANSI Standard): Every bit is manufactured to strict ANSI standards using a 100% fully ground process. This ensures maximum concentricity and a self-centering tip that starts on contact without "walking".

Tailored Solutions for Wholesalers & Distributors

As a dedicated China HSS Drill Bit Factory, Jiacheng Tools understands that every market has unique requirements. We offer extensive customization options for our B2B partners:

Flexible Material Selection

Choose from M35 Cobalt (HSS-E) for heavy-duty stainless steel drilling, HSS M2 (6542) for standard industrial use, or high-performance HSS 4341/4241 grades.

Advanced Coatings

Optimize your tool life with options like TiAlN (Dark Purple), TiN (Gold), Amber (Bronze), or Black Oxide.

 

Custom Branding & Packaging

We provide OEM services, including laser-marked logos and custom-designed metal cases to help you build your own brand identity.

Global Supply & North American Expertise

Jiacheng Tools is a leading manufacturer specializing in the North American industrial market. Our new 21pc & 29pc HSS sets are engineered to rigorous ANSI standards for high-performance drilling. We maintain a stable raw material inventory to ensure consistent quality and competitive lead times, providing a reliable partnership regardless of market fluctuations.

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