6–12mm Serrated Drill Bit Set – Glass, Tile, Concrete & Metal

Tackle Any Hard Surface with Precision

Whether you're hanging a mirror, installing a backsplash, or running conduit through a concrete wall, the right drill bit makes all the difference. This 6–12mm Four-Edge Serrated Drill Bit Set is engineered to cut cleanly and efficiently through glass, ceramic tiles, concrete, and metal — giving you professional-grade results on every project.

Made in Mainland China.

Why Choose This Drill Bit Set?

• Four-Edge Serrated Design: The unique four-edge geometry distributes cutting force evenly, reducing chipping and cracking on delicate surfaces like glass and ceramic.
• Wide Size Range: Includes bits from 6mm to 12mm, covering the most common drilling needs for home improvement, renovation, and DIY projects.
• Multi-Material Versatility: Engineered to drill through glass, tiles, ceramics, concrete, brick, and metal — one set handles them all.
• Durable Construction: Hardened tip stays sharp through repeated use, maintaining accuracy and clean entry points on tough materials.
• Universal Shank: Compatible with most standard corded and cordless drills — no special chuck required.
• Value Pack: Available in 2-piece or 4-piece configurations, so you can choose the set that fits your needs and budget.

What's in the Box?

• 2 pcs or 4 pcs Four-Edge Serrated Drill Bit Set (6mm–12mm)

Ideal For

• DIY home improvement and renovation projects
• Installing bathroom fixtures, mirrors, and tile surrounds
• Drilling through concrete walls for anchors and fasteners
• Metalworking and fabrication tasks
• Professional tradespeople and serious hobbyists

For guidance on safe power tool use, visit the OSHA Power Tools Safety resource.

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Frequently Asked Questions

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

A: This four-edge serrated drill bit set is designed to drill through a variety of hard materials including glass, ceramic tiles, concrete, brick, and metal. The serrated tip geometry helps minimize cracking and chipping on brittle surfaces like glass and ceramics.

Q: What drill sizes are included in the set?

A: The set covers sizes from 6mm to 12mm. You can choose between a 2-piece or 4-piece pack depending on your project requirements.

Q: Are these bits compatible with standard drills?

A: Yes. The bits feature a universal shank that fits most standard corded and cordless drills. No special adapters or chucks are required for typical home or workshop use.

Q: Do I need water or lubricant when drilling through glass or tile?

A: When drilling through glass or ceramic tile, it is generally recommended to use water as a coolant to keep the bit temperature low and extend its lifespan while achieving a cleaner cut. Always follow appropriate safety precautions when drilling hard or brittle surfaces.