Diamond Core Drill Bits – Dry Drilling for Tile, Granite & Marble

Diamond Core Drill Bits with Hexagonal Shank – Fast, Dry Drilling for Hard Surfaces

Tackle your toughest tiling and stonework projects with these premium diamond core drill bits. Featuring a full-diamond abrasive body and hexagonal shank, these bits are engineered for fast, clean, dry drilling through ceramic tile, granite, marble, and other hard materials — no water required. Available in packs of 1, 2, 3, or 4 pieces to suit any job size.

Made in China.

Key Features

• Dry Drilling, No Water Needed: Designed for convenient dry use — drill smoothly and quickly without the hassle of water cooling systems.
• Fast, Smooth Hole Opening: Engineered for rapid penetration with minimal chipping, delivering clean, precise holes every time.
• Full Diamond Abrasive Body: The entire drill body is coated with high-concentration diamond abrasive, effectively doubling the usable grinding and drilling surface area for extended versatility.
• Extended Abrasive Edges: Longer abrasive edges deliver smooth, even edge trimming and grinding with excellent control — perfect for fine finishing work.
• Upgraded Brazing Process: Advanced brazing technology firmly bonds diamond particles to the steel matrix, preventing shedding and dramatically improving durability and wear resistance.
• Hexagonal Shank: Universal hex shank fits most standard drills and rotary tools for easy, secure attachment.
• Versatile Application: Ideal for ceramic tile, porcelain, granite, marble, and other hard stone surfaces — suitable for DIY home renovations and professional use.

Specifications

• Material: Diamond
• Color: Gold
• Shank Type: Hexagonal
• Drill Type: Center Core Drill Bit
• Package Quantity: 1 / 2 / 3 / 4 Pcs (choose your preferred pack size)
• Country of Origin: Made in China

Note: Please allow 2–3% variance due to manual measurement. Actual product color may differ slightly from images due to monitor display differences.

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Frequently Asked Questions

Q: Can these diamond core drill bits be used without water cooling?

A: Yes! These diamond core drill bits are specifically designed for dry drilling, meaning you can use them without any water or coolant. The full-diamond abrasive body and advanced brazing process are optimized for efficient dry use on ceramic tile, granite, and marble.

Q: What materials can these diamond core bits drill through?

A: These bits are suitable for drilling through a wide range of hard surfaces including ceramic tile, porcelain, granite, marble, and similar stone materials. The high-concentration diamond abrasive ensures effective penetration and clean holes in hard substrates.

Q: What type of drill is compatible with the hexagonal shank?

A: The hexagonal (hex) shank is a universal standard that fits most cordless and corded drills, rotary tools, and drill drivers. Simply insert the hex shank into your drill's chuck for a firm, secure fit before starting work.

Q: How many pieces come in a pack?

A: You can choose from packs of 1, 2, 3, or 4 pieces depending on your project needs. Multi-piece packs are great value for larger renovation jobs or to keep spares on hand.