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Introducing the 1pcs 4mm‑120mm Diamond Powder Sintered Drill Bit – the ultimate solution for precision drilling through tile, marble, glass, ceramic, and even jade. Engineered with advanced sintered diamond technology, this versatile hole‑saw delivers clean, burr‑free holes every time, making it the perfect companion for professional contractors, DIY enthusiasts, and anyone who demands flawless results from their power tools.
Key Highlights
- 🛠️ Ultra‑Sharp Diamond Powder Sintered Edge – ensures rapid cutting with minimal wear.
- 📏 Adjustable Diameter Range: 4 mm to 120 mm – covers a wide spectrum of drilling needs from tiny pilot holes to large openings.
- 💎 Multi‑Material Compatibility – drills effortlessly through tile, marble, glass, ceramic, stone, and jade.
- ⚡ Optimized for Power Tools – fits standard rotary hammers, hammer drills, and electric drills for maximum efficiency.
- 🔧 Robust Sintered Construction – resists heat buildup and prolongs tool life.
- 🌟 Precision‑Engineered Core – reduces vibration and delivers smooth, accurate cuts.
Why Choose This Diamond Drill Bit?
When you need a clean, crack‑free hole in hard, brittle surfaces, ordinary bits simply won’t cut it. Our sintered diamond drill bit combines the hardness of industrial‑grade diamond particles with a resilient metal matrix, giving you:
- Faster drilling speeds, saving you time on every project.
- Extended service life – less frequent replacements, lower overall cost.
- Consistently smooth edges that eliminate post‑drilling chipping.
- Reduced heat generation, protecting both the workpiece and your tool.
Perfect Applications
From bathroom remodels to high‑end countertop installations, this drill bit excels in:
- Creating drainage holes in ceramic tiles.
- Installing fixtures in marble or stone surfaces.
- Cutting glass panels for decorative projects.
- Preparing jade or other precious stones for jewelry making.
- General purpose drilling in any hard, non‑metal material.
Specifications
- Material: Sintered diamond powder with high‑strength steel body
- Diameter Range: 4 mm – 120 mm (adjustable)
- Shank Size: Standard 1/4″ (6.35 mm) – compatible with most power drills
- Length: 120 mm overall (including shank)
- Operating Speed: Up to 3,000 rpm (recommended 500‑1,500 rpm for glass)
- Coolant: Water or oil cooling recommended for extended use
Installation & Use Tips
- Secure the bit tightly in the chuck to avoid wobble.
- Start with a low speed to create a pilot indent, then increase to optimal cutting speed.
- Apply steady, moderate pressure – let the diamond edge do the work.
- Use water or oil as a coolant to prolong bit life and keep the cut clean.
- Periodically withdraw the bit to clear debris and prevent overheating.
Customer Satisfaction Guarantee
We stand behind the quality of our diamond drill bits. If you encounter any issues or are not completely satisfied, contact our support team within 30 days for a hassle‑free replacement or full refund.
Upgrade your toolkit today with the 1pcs 4mm‑120mm Diamond Powder Sintered Drill Bit and experience professional‑grade performance on every drilling task.
Price: Original price was: $ 8.85.$ 7.43Current price is: $ 7.43.