6-Piece Vacuum-Brazed Diamond Drill Bit Set

Drill clean, precise holes through hard surfaces like porcelain, ceramic tile, glass, granite, and marble with total control and zero bit slippage. Features a 1/4" hex shank and hollow chip-removal structure for dry drilling convenience.

1. Clean Hole Edges & Reduced Edge Chipping

High-density vacuum-brazed diamond particles slice smoothly into smooth, hard materials—eliminating bit skate and preventing unsightly edge cracks or chips on expensive tiles.

2. Convenient Dry Drilling Without Water Feed Setups

Designed to handle tile, stone, and glass installation projects without demanding a continuous water stream. Simply apply light pressure and pause briefly between longer cuts to manage heat.

3. Fast Debris Clearance & Hollow Core Body

The hollow center design allows ground dust and stone chips to escape freely, speeding up drilling progress and extending bit longevity.

4. Universal 1/4" Hex Shank Tool Compatibility

The 1/4-inch hexagonal shank locks securely into standard hand drills, cordless drills, and bench drills to prevent slipping inside the chuck during heavy rotation.

⚠️ Important: Use standard rotary mode only. Do NOT use hammer or impact mode on tile, glass, or stone.

5. Two-Step Technique: Start at 45°, Finish at 90°

Begin drilling at an angle to create a precise initial crescent groove. Slowly tilt the drill upright to 90 degrees and apply a gentle circular rocking motion to complete the hole smoothly.

Product Specifications

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