DKIBBITH 4-Inch Diamond Hole-Saw Bits with Pilot Drill — 102mm for Porcelain, Ceramic Tile & Granite

Overview

The DKIBBITH 4-Inch Diamond Hole-Saw Bits with Pilot Drill are built to tackle tough drilling tasks with confidence. Featuring a diamond-tipped edge, these bits are designed to deliver clean, precise holes through a range of materials, from porcelain and ceramic tile to granite and glass. With thoughtful details like a guiding pilot drill bit and a substantial cutting depth, they’re made to support accurate, repeatable results on DIY projects and professional jobs alike.

What you get and what it means for your project

Each 102mm (4-inch) bit combines robust construction with practical features that help you work faster and with less guesswork. The diamond height is 3/8 inch, and the overall length reaches 2-1/2 inches, giving you a sturdy tool that can handle medium-thickness materials without frequent bit changes.

• Premium durability: A diamond-tipped edge maintains sharpness for longer life, reducing chatter and producing cleaner holes over time.
• Notable cutting depth: A generous 1-3/16 inch cutting depth enables handling thicker countertops and tiles in a single pass.
• Precise sizing: The 102mm (4 inch) diameter is paired with a guiding pilot drill bit to help you start accurately and reduce wandering.
• Cooling for longevity: Water cooling is recommended during drilling to optimize performance and extend bit life.
• User-friendly features: A removable pilot bit and a hex wrench simplify setup and fine-tuning for different jobs.

Practical uses you can count on

These bits excel in a variety of common remodeling and fabrication tasks. They’re well suited for creating clean holes in countertops for faucets or garbage disposal buttons, as well as planning openings for pipes, HVAC access, or decorative pottery and planters. The combination of depth, diameter, and pilot guidance helps you achieve consistent results across multiple projects.

• Countertop and sink installations require accurate hole placement and clean edges.
• Remodels for bathrooms or kitchens often need precise openings for fixtures and controls.
• Pottery, planters, and artistic projects benefit from reliable, square-edged holes.
• General construction or renovation tasks that involve ceramic, porcelain, granite, or glass materials.

Tips for best results

• Keep a steady, moderate drilling speed to minimize heat buildup and prevent material cracking.
• Lubricate with water during drilling, applying a thin, continuous stream or intermittent dips as needed.
• Use the included hex wrench to secure the setup and maintain alignment with the workpiece.
• Resume drilling after cooling intervals to maintain edge integrity and accuracy.

Important considerations

These bits are designed for durable performance on a range of hard materials, but results still depend on material composition, thickness, and proper handling. They offer a reliable option for projects that require clean, round holes without excessive force or rework.