6–12mm Four-Edge Serrated Drill Bit Set – Tile, Glass & Concrete

Drill Through Tough Surfaces with Ease

Tackle your toughest DIY projects with this versatile Four-Edge Serrated Drill Bit Set, available in 6mm, 8mm, 10mm, and 12mm sizes. Engineered with a precision four-edge serrated tip design, these bits cut cleanly and efficiently through a wide range of hard materials — including glass, ceramic tiles, concrete, metal, stone, and brick — without cracking or chipping your workpiece.

Whether you're mounting fixtures in a tiled bathroom, anchoring hardware into concrete walls, or drilling through metal panels, this set gives you the right bit for the job every time.

Key Features

• Four-Edge Serrated Tip: Aggressive cutting geometry for fast, clean entry into hard and brittle surfaces
• Wide Size Range: Includes 6mm, 8mm, 10mm, and 12mm bits to cover common hole sizes
• Multi-Material Compatible: Suitable for glass, ceramic tile, concrete, metal, stone, and ceramics
• Durable Construction: High-quality steel build designed for long-lasting performance across repeated use
• Reduced Cracking Risk: Serrated edge distributes cutting force evenly, minimizing surface fractures on tiles and glass
• Standard Shank: Fits most standard power drills and rotary tools
• Set Options: Available as a 2-piece or 4-piece set to suit your project needs

What's in the Box

• 2-piece or 4-piece four-edge serrated drill bit set (6mm–12mm)

Ideal For

• Home renovation and bathroom tiling projects
• Installing shelves, fixtures, or anchors in concrete or masonry
• Drilling pilot holes in metal sheets or panels
• Glass crafts and custom glazing work
• General contractor and professional trade use

Made in Mainland China.

For safe tool use and best practices, refer to the OSHA Hand and Power Tools Safety Guidelines.

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Frequently Asked Questions

Q: What materials can the four-edge serrated drill bits cut through?

A: These drill bits are designed for use on hard and brittle materials including glass, ceramic tile, concrete, stone, brick, and metal. The serrated four-edge tip provides efficient cutting across all these surfaces.

Q: What sizes are included in the drill bit set?

A: The set is available in 6mm, 8mm, 10mm, and 12mm sizes. You can choose a 2-piece or 4-piece set depending on your project requirements.

Q: Do these bits fit standard power drills?

A: Yes. These bits feature a standard round shank that is compatible with most conventional corded and cordless power drills and rotary tools.

Q: How do I prevent tiles or glass from cracking while drilling?

A: Start at low speed to score the surface, apply gentle and consistent pressure, and keep the drill bit cool by occasionally pausing or using a small amount of water at the drilling point. The four-edge serrated design helps distribute cutting force to minimize cracking.