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.
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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 Pounds |
| 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 | Jobber Drill Bits |