Crosstar 21Pc Cobalt Stepped Point Drill Bit Set,1/16-1/2" TiAlN Coated
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- 【21-Piece M35 Cobalt Steel Drill Bit Set: Targeted for Hard Metals】Crafted from premium M35 cobalt steel with 5% cobalt core, this drill bit set is engineered to tackle tough metals ranging from 30–60 HRC hardness. It delivers superior drilling performance on stainless steel, high-temperature alloy steel, and bearing steel, outperforming ordinary high-speed steel bits on hard materials.
- 【135° Step Drill Head: 50% Faster, No Pre-Drilling Needed】Boasting a 135° split-point step design, this drill bit enables instant, accurate starting—even on curved surfaces. The stepped structure delivers rounder, smoother holes and allows easy hole enlargement on existing openings. The tri-flat shank locks securely in chucks for stable, wobble-free drilling.
- 【Exclusive TiAlN Nano Coating】Unlike the mainstream oxide, blued, or yellow-baked coatings on the market, our drill bits feature an exclusive high-performance TiAlN nano coating. Boasting 1400°F heat resistance and 6x enhanced durability, this unique coating solution outshines competitors and delivers unmatched drilling performance for tough tasks.
- 【Superior Shockproof Case】Our premium shockproof case is attractive, shatter-resistant and effectively solves the common issues of flimsy plastic boxes that break easily and iron boxes that tend to rust; each drill body is marked with laser-etched size labels for quick access, and the 21-piece set comes with practical popular sizes for secure storage and hassle-free use.
- 【Usage Tips + Guarantee】 Apply steady vertical pressure during operation (do not twist the drill bit) and match the rotational speed to the bit size for optimal performance: 1/16–9/64 inch bits recommended at 1260rpm; 5/32–1/4 inch bits at 740rpm; 5/16–1/2 inch bits at 290rpm. if any quality issues arise during use, please contact us promptly—we will make every effort to resolve the problem and ensure your satisfactory shopping experience.
Estimated shipping
Select a product to estimate shipping.The Crosstar 21-Piece Cobalt Stepped Point Drill Bit Set is a robust solution for professionals and serious DIYers tackling demanding metalworking projects. These bits are built to deliver exceptional performance when drilling through tough materials like stainless steel and high-temperature alloys.
Key Highlights
- Superior Hardness Drilling: Crafted from M35 cobalt steel, these bits excel at drilling materials with a hardness between 30-60 HRC.
- Faster Drilling: The 135° step drill head eliminates the need for pre-drilling on many materials, significantly speeding up your workflow.
- Smooth Hole Creation: The stepped design creates rounder, more precise holes, reducing tear-out and improving overall hole quality.
- Secure Chuck Engagement: The tri-flat shank ensures a firm grip in your drill chuck, minimizing wobble and maximizing drilling stability.
- Durable Coating: The TiAlN nano coating enhances the bit's lifespan and cutting performance.
Useful Facts
- Manufacturer: Crosstar
- Material: M35 Cobalt HSS
- Bit Size Range: 1/16" to 1/2"
- Bit Count: 21 pieces
- Item Weight: 1.08 pounds
Good Fit For
- Metalworking professionals
- DIY enthusiasts working with stainless steel and alloys
- Machinists and fabricators
- Anyone needing precise drilling in hard materials
Product details
| Main Specification | |
|---|---|
| Fabricante | Crosstar |
| Marca | Crosstar |
| Quantidade do pacote de itens | 1 |
| Componentes Incluídos | 1/16"(*2) | 5/64"(*2) | 3/32"(*2) | 7/64"(*2) | 1/8"(*2) | 9/64" | 5/32" | 11/64" | 3/16" | 13/64" | 7/32" | 15/64" | 1/4" | 5/16" | 3/8" | 1/2" |
| Material | M35 cobalt HSS |
| Cor | Black-orange |
| Tamanho | Jobber Bits |
| Peso do Item | 1,08 libras |
| Product information | |
| Dimensões do Pacote | 7.2 x 4.29 x 1.81 inches |
| Número do modelo de item | CST-JTTMHZ |
| Technical Details | |
| Número da parte | CST-JTTMHZ |
| Others | |
| Data Primeira Disponível | 2025 or 10 de Novembro |
| Tipo de produto | Perfuração de trabalho |