Round Handle Construction Concrete Wall Drilling Impact Drill
1. The drill bit is made of high-strength alloy material, which is impact-resistant and wear-resistant. It is specially designed for hard materials such as concrete, brick walls, cement, etc. It has high drilling efficiency and is not easy to crack.
2. The standard round handle structure is suitable for a variety of tools and equipment such as electric hammers and electric drills. It is easy to clamp and has stable transmission. It is widely used in construction, home decoration and other scenes.
3. The combination of multiple-size drill bits meets the construction needs of different apertures such as walls, floors, and wire pipes. It is highly practical and is a must-have tool set for construction workers and decoration masters.
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| Model | D | D1 | L | L1 |
| 3mm | 3mm | 2.6MM | 26MM | 60MM |
| 4mm | 4mm | 3.5MM | 39MM | 75MM |
| 5mm | 5mm | 4MM | 45MM | 85MM |
| 6mm | 6mm | 5MM | 55MM | 100MM |
| 7mm | 7mm | 5.3MM | 55MM | 100MM |
| 8mm | 8mm | 7MM | 68MM | 120MM |
| 9mm | 9mm | 7.5MM | 68MM | 120MM |
| 10mm | 10mm | 10MM | 69MM | 120MM |
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