1/2" Metal Drill Bit Set 3 Piece, 6" Overall Length, 3-Flat Shank, M35 Cobalt TiAlN Coated with Bullet Point Tip, for Hardened Metal & Stainless Steel & Cast Iron, No Pilot Hole Needed
Product details
| Management number | 229223310 | Release Date | 2026/05/31 | List Price | US$8.80 | Model Number | 229223310 | ||
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| Category | |||||||||
- 【Precision Bullet Point Tip】 Sharp, self-centering bullet point tip helps reduce wandering and improves drilling accuracy. Combined with a 135° split point, it enables faster penetration with less pressure, producing cleaner holes with reduced burrs. Ideal for drilling metal, stainless steel, and hardened materials.
- 【Cobalt Alloy for Tough Metals】 Made from M35 cobalt steel with 5% cobalt to improve heat resistance and cutting durability during demanding drilling tasks. The material helps maintain edge strength under high temperatures, making it suitable for stainless steel, hardened metal, and other tough materials.
- 【TiAlN Coating】 The critical performance differentiator is the TiAlN (Titanium Aluminum Nitride) nano-coating. Increases surface hardness to 89HRC with outstanding heat-resistance, so your drill bit cuts fast and stay sharp. 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.
- 【1/2" Cobalt Drill Bit 3-Piece Set Pro】 Every bit is securely held in a robust storage box. 1/2"(*3). Length: 6". Note: This bit adopts a bullet tip design. Each bit is laser-etched with size markings on the shank.
- 【Engineered for Thin, Hard & Gummy Metals】 Designed for use on stainless steel, hardened metal, alloy steel, sheet metal, cast iron, and more. Suitable for use with most standard drill drivers and drill presses, making it a reliable choice for professional metalworking and DIY projects. 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.
| ASIN | B0GDXXF15W |
|---|---|
| Model | ZDT312PRO |
| Set Name | 1/2"(3 Piece) |
| Brand Name | OSTTE |
| Shank Type | 3-Flat |
| Unit Count | 3.0 Count |
| Part Number | ZDTM35TiAlN |
| Finish Types | Titanium Aluminum Nitride |
| Manufacturer | OSTTE |
| Material Type | Cobalt Steel |
| Tool Flute Type | Spiral |
| Cutting Diameter | 0.5 Inches |
| Number of Flutes | 2 |
| Number of Pieces | 3 |
| Included Components | no |
| Cutting Angle String | 135 Degrees |
| Surface Recommendation | Metal, Steel, Stainless Steel, Alloy |
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