10-Pc Diamond Core Drill Bit Set – Glass Ceramic Tile Marble

$80.48 $108.92

10-Piece Diamond Core Drill Bit Set for Glass, Ceramic, Tile & Marble

Take on your toughest drilling projects with confidence. This 10-piece diamond-coated hollow core drill bit set is engineered for clean, precise holes in hard, brittle materials — including glass, ceramic tile, porcelain, marble, granite, slate, fiberglass, and more. Whether you're installing a bath faucet, running plumbing, or tackling a DIY craft project, these bits deliver professional-quality results every time.

Made in Mainland China.

Why Choose This Drill Bit Set?

Diamond-Coated Carbon Steel Construction – High-hardness diamond coating ensures long-lasting cutting performance on tough surfaces without chipping or cracking.
10 Versatile Sizes in One Set – Includes diameters from 8mm to 50mm (0.31" to 1.97"), covering a wide range of hole sizes for virtually any task.
Clean, Accurate Holes Every Time – Hollow core design channels debris away from the cutting surface, resulting in smooth, chip-free edges.
Universal Compatibility – Works with standard power drills and drill presses. No special adapters required.
Wide Application Range – Perfect for home improvement, construction, hobby crafts, jewelry making, and more.

Specifications

Material: Diamond-coated carbon steel
Surface Finish: Diamond-plated
Sizes Included: 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 50mm
Inch Equivalents: 0.31", 0.39", 0.47", 0.55", 0.63", 0.71", 0.79", 0.87", 0.98", 1.97"
Quantity: 10 pieces

Suitable For

Glass bottles, jars, and sheet glass
Ceramic and porcelain tiles
Marble, granite, and slate
Fiberglass and composite materials
Concrete blocks and stone
Bath faucet installation & plumbing projects
Jewelry, crafts, and hobby applications

Pro Tips for Best Results

For optimal performance and extended bit life, always use a low drill speed and apply a steady stream of water or coolant to the drilling area. This keeps the bit cool, reduces dust, and produces the cleanest possible cuts.

Package Contents

10 × Diamond Core Drill Bits (8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 50mm)

Note: Slight color variations may occur due to different monitor settings. Please allow ±1–3mm tolerance due to manual measurement.

Frequently Asked Questions

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

A: These diamond-coated core drill bits are designed for hard, brittle materials including glass, ceramic tile, porcelain, marble, granite, slate, fiberglass, and concrete. They are not intended for use on soft materials like wood or standard metal.

Q: Do I need a special drill to use these bits?

A: No special drill is required. These bits are compatible with standard power drills and drill presses. Simply fit the shank into your drill chuck as you would with any standard bit.

Q: How do I get the cleanest holes and prolong bit life?

A: Always operate at a low speed and keep the drilling area cool by applying water or another appropriate coolant continuously during use. This prevents overheating, reduces micro-cracking in the material, and significantly extends the lifespan of the diamond coating.

Q: Can these be used for bath faucet installation?

A: Yes! These bits are ideal for drilling through ceramic, marble, and porcelain surfaces commonly found around sinks and bathtubs, making faucet and fixture installation straightforward and precise.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.