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Drill clean, smooth, and chip-free holes in brittle and hard materials with our premium Jungong diamond-coated core drill bits, available at Atradesen.com. Manufactured in Shanghai, these high-performance hole saws feature a heavy-duty nickel-plated carbon steel body with electroplated industrial diamond grit (emery) on the cutting crown.
Designed to be mounted easily on standard handheld electric drills, impact drivers, or bench drills, this professional series offers a highly durable solution for cutting precision holes in glass, ceramic tiles, and rigid synthetic sheets.
Specifically optimized for producing clean, circular holes in highly challenging, non-metallic substrates, including:
To ensure a clean cut and extend the lifespan of the diamond coating, please strictly adhere to these professional guidelines during operation:
| Feature | Details |
|---|---|
| Brand & Origin | Jungong Brand (Manufactured in Shanghai, China) |
| Cutting Grit Material | High-Grade Electroplated Emery (Industrial Diamond Particles) |
| Body Construction | Heavy-Duty Carbon Steel with Anti-Rust Nickel Plating |
| Shank Type | Standard Round Shank (Fits standard drill chucks) |
| Cooling Requirement | Strictly mandatory to add water for cooling while drilling |
Q: Why is continuous water cooling mandatory for these diamond hole saws?
A: Industrial diamonds are electroplated onto a steel substrate. Friction from drilling glass or ceramic tiles generates intense localized heat. If water is not continuously applied to cool the bit, the steel crown will expand and release the electroplated diamond particles, ruining the bit in seconds.
Q: How do I keep the hole saw from sliding when I start drilling?
A: Since there is no center pilot pin, start by tilting your drill at a 45-degree angle. Let only one side of the circular diamond edge contact the glass/tile to grind a small moon-shaped groove. Once this crescent groove is deep enough to act as a guide, slowly pivot the drill back to a 90-degree perpendicular position and continue drilling.
Recommended System Bundles & Companion Products:
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+86-152-6062-9033
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Designed for long-term use in plumbing, aquarium, irrigation and industrial applications.
