Features:
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Made of fine quality material, low resistance, high hardness, improving work efficiency.
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U-shaped spiral is smooth and flat, and the drilling is smoother.
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The design of triangle shank makes the clamping more tight and does not slip.
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Strong toughness and wear resistance, can be installed in electric drills.
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Provides smooth and accurate drilling in tile, glass, brick wall, wood and so on.
| Diameter | Length | |
| 3mm | 80mm | |
| 4mm | 80mm | |
| 5mm | 90mm | |
| 6mm | 100mm | |
| 8mm | 113mm | |
| 10mm | 118mm | |
| 12mm | 120mm | |
