🔥6 Pcs Diamond Drill Bits Set, 1/4 5/6 3/8 1/2 Inch Brazed Diamond Drill Bits for Precision Drilling in Tile Ceramic Glass Granite Marble Masonry

HK$160.00 HKD

~~HK$308.00 HKD~~ HK$160.00 HKD

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Clean, Precise Holes in Hard Surfaces

Drill through tile, glass, granite, marble and other hard materials with greater control, cleaner edges and less frustrating bit slippage.

Hard Surfaces Should Not Mean Rough Results

Standard drill bits can slide across smooth tile, struggle to cut hard stone and leave cracked or uneven edges. These diamond drill bits are designed to create a more stable starting groove and a cleaner, controlled opening.

More Convenient Installation

Dry Drilling Made Easier

Complete common tile and stone installation projects without setting up a continuous water feed. Use light pressure and pause periodically during longer drilling sessions to control heat.

Premium Materials, Built to Perform

Every part is designed to support more stable drilling—from the diamond-coated cutting edge to the anti-slip hexagonal shank.

Works With Common Drilling Equipment

The secure hex shank can be used with standard hand drills, cordless drills and suitable bench drills, giving you more flexibility for workshop and on-site projects.

Important: Do not use hammer or impact mode when drilling tile, glass, ceramic or natural stone.

Simple Two-Step Technique

Start at 45°. Finish at 90°.

Begin at an angle to create a stable starting groove. Then slowly bring the drill upright and use a gentle circular motion to finish the hole and clear debris.

Let the Diamond Edge Do the Work

Begin with the drill positioned at approximately a 45-degree angle.
Use light, controlled pressure instead of forcing the drill downward.
Slowly move the drill into a 90-degree upright position.
Gently rock the bit in a small circular motion to help remove debris.
Pause periodically during extended drilling to reduce excess heat.
Always wear suitable eye protection and safety equipment.

How to Drill Perfect Clean Holes in 3 Steps

1️⃣Start at 45-Degree Angle

Place the bit edge at a 45° angle to establish a stable initial crescent groove without slipping across smooth glazed surfaces.

2️⃣Slowly Upright the Drill

Once the groove is anchored, gradually move the drill to a 90° vertical position and apply moderate, steady pressure.

3️⃣Maintain Slight Orbital Motion

Slightly oscillate the drill while penetrating to clear debris, enhance cooling efficiency, and pause periodically during extended drilling to reduce excess heat.

Why Vacuum-Brazed Drill Bits Prevail

Standard masonry bits and cheap electroplated cutters wear out quickly, slip easily, and shatter delicate tile surfaces. See how our professional 6-piece set outperforms traditional tools.

Feature Spec	PREMIUM SET Our Diamond Bits	Standard Masonry Bits
Drilling Technology	Vacuum-Brazed Diamond	Electroplated / Carbide Tip
Dry Drilling Support	Integrated Cooling Wax (Supported)	Requires Constant Water Flow
Shank Design	1/4" Anti-Slip Hex Shank	Slippery Round Shank
Edge Finish	Clean, Smooth & Chip-Free	Prone to Cracking & Splintering

Package Includes

1 × 6 mm Diamond Drill Bit
1 × 8 mm Diamond Drill Bit
1 × 10 mm Diamond Drill Bit
1 × 12 mm Diamond Drill Bit
1 × 14 mm Diamond Drill Bit
1 × 16 mm Diamond Drill Bit

Frequently Asked Questions

Q1: Can these bits be used without water?

A: Yes, dry‑drilling is supported. But we recommend short‑interval drilling to avoid overheating the diamond tip.

Q2: Will these bits work on porcelain and ceramic tile?

A: Absolutely. These diamond drill bits perform well on porcelain tiles, ceramic tiles, glazed tiles, marble, granite and glass. They help deliver clean, chip‑free holes when operated correctly.

Q3: How do I keep the bit from slipping?

A: Start drilling at a 45‑degree angle to create a small notch first, then slowly adjust to 90‑degree vertical position. The anti‑slip hex shank also helps hold the bit firmly in your drill chuck.

Q4: What projects are these suitable for?

A: Perfect for DIY home renovation, bathroom & kitchen fitting, mirror mounting, handicraft making. Ideal for drilling holes in tile, porcelain, marble, granite, glass and other hard brittle materials.

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