Crosstar 21Pcs M35 Cobalt Drill Bit Set,1/16"-1/2" Metal Drill Bits
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- 【Engineered for Thin, Hard & Gummy Metals】 This set is specifically engineered for the unique challenges of drilling thin sheet metal (e.g., stainless steel, titanium). Thin, hard materials are prone to causing bits to skate, work-harden, and overheat rapidly, leading to premature dulling. The M35 cobalt steel core provides exceptional hot hardness to resist edge softening under intense localized heat, while the geometry is optimized to cut cleanly without excessive force that can distort thin material.
- 【Start Straight, Drill Fast, Finish Clean】 Featuring a self-centering Pilot Point tip, these bits eliminate frustrating "bit walk" on curved or hard surfaces for perfectly placed holes. Combined with a 135° split point, this design allows for faster penetration with significantly less downforce, resulting in cleaner holes with minimal exit burrs. This ensures precise, professional results in sheet metal with reduced post-processing time.
- 【 TiAlN Coating: Extreme Heat Resistance for Longer Life】 The critical performance differentiator is the TiAlN (Titanium Aluminum Nitride) nano-coating. It withstands continuous friction temperatures exceeding 1,472°F (~800°C), forming a protective barrier that drastically reduces wear. This translates directly to a multi-fold increase in usable life compared to uncoated or standard TiN-coated bits, maintaining a sharp cutting edge through demanding jobs and lowering the long-term cost.
- 【 Professional 21-Piece Kit with Smart Organization】 Includes the 16 most essential sizes from 1/16" to 1/2", with practical duplicates provided for the 5 smallest, high-wear diameters. Every bit is securely held in a robust, compartmentalized storage case featuring laser-etched size labels. This system ensures instant identification, superior protection against damage, and perfect portability for shop or site.
- 【Pro-Tip for Optimal Results & Guaranteed Satisfaction】 For best performance on thin metals: Apply firm, steady, and vertical pressure at startup to engage the Pilot Point and prevent skating. We stand behind this set with a 90-Day Satisfaction Guarantee. Contact our customer support directly with any concerns for a prompt and satisfactory resolution.*Note:Bits ranging from 1/16" to 1/8" adopt a standard tip design, whereas those sized from 9/64" to 1/2" feature a bullet tip design*.
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Select a product to estimate shipping.The Crosstar 21-Piece M35 Cobalt Drill Bit Set is designed to tackle the demanding task of drilling thin, hard metals like stainless steel and titanium. These jobber bits offer precision and durability for professional results.
Key Highlights
- Reduced Skating & Work-Hardening: M35 cobalt steel resists edge softening during drilling, extending bit life.
- Faster Drilling: The 135° split point design allows for quicker penetration with less downforce.
- Precise Hole Placement: Self-centering pilot point minimizes bit wandering on difficult surfaces.
- Clean Hole Edges: Optimized geometry reduces the formation of exit burrs for a professional finish.
- Comprehensive Set: Includes 21 bits covering a range of sizes (1/16" - 1/2").
Useful Facts
- Material: High Speed Steel (HSS)
- Cutting Diameter Range: 1.59 millimeters (1/16" - 1/2")
- Coating: Titanium Aluminum Nitride (TiAlN)
- Shank Type: Hex
- Brand: Crosstar
Good Fit For
- Sheet Metal Fabrication
- Automotive Repair
- Metalworking Projects
- DIY Metalworking
- Precision Drilling
Product details
| Main Specification | |
|---|---|
| Surface Recommendation | Metal or Stainless Steel or Cast Iron |
| Manufacturer | Crosstar |
| Unit Count | 21 Count |
| Cutting Diameter | 1.59 millimeters |
| Point Style | Pilot Point |
| Shank Type | Hex |
| Tool Flute Type | Spiral |
| Brand | Crosstar |
| Cutting Angle String | 135 Degrees |
| Number of Pieces | 21 |
| Material | High Speed Steel (Hss) |
| Finish Type | Titanium Aluminum Nitride |
| Product information | |
| Number of Packs | 1 |
| Set Name | 21pcs Set |
| Technical Details | |
| Part Number | CST-ZDMAHZ |
| Material Type | High Speed Steel (HSS) |
| Number of Flutes | 2 |
| Style | |
| Finish Types | Titanium Aluminum Nitride |
| Others | |
| Item Highlight | Stainless Steel or TiAlN Coated or Bullet Point Tip or Self-Centering High-Speed Steel Jobber Bits or for Thin Hardened Steel or Titanium |
| Product Type | Jobber Drill Bits |