| Material | High-speed steel |
| Length | Approx. 15cm/5.9" |
| Shank diameter | 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1" |
| Quantity | 8pcs |


Smooth surface treatment to keep lubricating oil drilling.
Suitable for low and medium tensile strength materials in drilling.
High hardness, fast, stable and reliable.
8x Drill Bits
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