Industrial M35 Cobalt HSS Twist Drill Bit for Stainless Steel (Inox) – OEM
Twist Drill Bits

Industrial M35 Cobalt HSS Twist Drill Bit for Stainless Steel (Inox) – OEM

Premium 135° Split Point HSS-Co M35 Drill Bits (Amber Finish) – Bulk

Quick Specifications

Product NameIndustrial M35 Cobalt HSS Twist Drill Bit (5% Cobalt, 135° Split Point)
Tool TypeCobalt High-Speed Steel Twist Drill (HSS-Co)
MaterialM35 Grade High-Speed Steel (5% Cobalt content)
Tip Angle135 Degree Split Point (Self-centering, no center punch required)
Surface FinishAmber Finish (Heat-treated for reduced friction)
Shank TypeStraight Shank (Standard DIN338 / ANSI)
Target MaterialStainless Steel (Inox), Hardened Steel, Cast Iron, High-Temperature Alloys
Hardness RangeUp to HRC 65-67 (Excellent Red Hardness)
Brand NameXiaoman Tools
ManufacturerShanghai Daoge Xiaoman Tools Co., Ltd.
Customized Support100% OEM/ODM (Custom sizes, laser etching, plastic tube/set packaging)
  • Factory Direct Pricing
  • Strict Standard QC
  • Support OEM / Custom Packaging

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Product Details

Industrial M35 Cobalt HSS Twist Drill Bit (5% Cobalt) for Stainless Steel

Master the Toughest Metals with Superior Red Hardness and Precision

Stop burning through standard bits when tackling tough alloys. The M35 Cobalt HSS Twist Drill Bits from Shanghai Daoge Xiaoman Tools Co., Ltd. are specifically engineered for heavy-duty industrial drilling in high-tensile materials. Forged from premium M35 High-Speed Steel with 5% Cobalt content, these bits exhibit exceptional "Red Hardness," maintaining their razor-sharp cutting edges even at extreme temperatures generated by drilling Stainless Steel (Inox), Cast Iron, and Hardened Metals. Featuring a high-performance 135-degree Split Point, these bits are self-centering, preventing "walking" on smooth surfaces and eliminating the need for a center punch. The distinctive Amber Finish is the result of precision heat treatment, acting as a lubricant-retaining layer that reduces friction and extends tool life by up to 10X compared to standard HSS bits. Available for direct B2B wholesale with full OEM customization for your global distribution needs.

Key Technical Advantages

  • 5% Cobalt Alloy (M35 Grade): Provides significantly higher heat and wear resistance than standard HSS. Designed to cut through 304/316 stainless steel and other high-strength alloys where standard bits fail.
  • 135° Self-Centering Split Point: The specialized cross-grind tip starts cutting immediately on contact. This prevents the bit from skating across the workpiece and ensures perfectly round, burr-free holes.
  • Superior Red Hardness: Remains sharp even when the cutting edge turns red-hot under heavy load, making it the ideal choice for continuous production lines and heavy fabrication.
  • Fully Ground Flutes: Precision CNC-milled flutes ensure rapid chip evacuation and minimize heat buildup, preventing the bit from binding in deep-hole applications.
  • Industrial Amber Finish: The specialized oxide layer improves lubricant retention and provides a professional aesthetic that signals high-performance quality to industrial buyers.

Technical Specifications

Manufacturer: Shanghai Daoge Xiaoman Tools Co., Ltd.
Material Grade: M35 HSS-Co (5% Cobalt)
Point Angle: 135° Split Point (Self-Centering)
Surface Finish: Amber Oxide (Heat Treated)
Ideal For: Stainless Steel (Inox), 304/316, Alloy Steel, Cast Iron
Manufacturing: Fully Ground CNC
OEM Service: Active (Laser Branding, Custom Sets)
Industrial M35 Cobalt HSS Twist Drill Bit for Stainless Steel (Inox) – OEM Detail 1Industrial M35 Cobalt HSS Twist Drill Bit for Stainless Steel (Inox) – OEM Detail 2Industrial M35 Cobalt HSS Twist Drill Bit for Stainless Steel (Inox) – OEM Detail 3Industrial M35 Cobalt HSS Twist Drill Bit for Stainless Steel (Inox) – OEM Detail 4