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⚡ Drill smarter, not harder — step up your precision game!
The Zhushan Metric Step Drill Set includes 3 high-speed steel bits with titanium coating, designed for smooth, clean holes from 4mm to 32mm. Featuring a two-fluted spiral design, these bits reduce heat and friction while delivering faster, precise drilling across wood, metal, steel, brass, and plastic surfaces.





| ASIN | B0735DK66P |
| Best Sellers Rank | #121,396 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #148 in Step Drill Bits |
| Brand | Zhushan |
| Brand Name | Zhushan |
| Customer Reviews | 4.1 out of 5 stars 1,182 Reviews |
| Cutting Angle String | 118 Degrees |
| Cutting Diameter | 4 Millimeters |
| Finish Type | Titanium |
| Finish Types | Titanium |
| Item Weight | 1 Grams |
| Manufacturer | Zhushan Electric Co.,Ltd |
| Material | 4241 High Speed Steel |
| Material Type | 4241 High Speed Steel |
| Minimum Bore Diameter | 4 Millimeters |
| Model | Zh0011 |
| Number of Flutes | 2 |
| Number of Pieces | 3 |
| Part Number | Zh0011 |
| Set Name | 3pcs Step Drill Bit Set |
| Shank Type | Hex |
| Surface Recommendation | Wood,Metal,Steel |
| Tool Flute Type | Spiral |
| UPC | 611138615778 |
| Unit Count | 1 Count |
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