When your project demands larger openings without compromising the integrity of expensive stone, the 25mm Diamond Core Bit is the ideal solution. This bit is specifically designed for the high-torque demands of cutting through dense granite and natural stone slabs. Its wider 25mm diameter makes it the go-to choice for installers who need to pass larger pipes or heavy-duty mounting anchors through thick stone surfaces with professional precision.
Featuring a high-concentration diamond-bonded edge, this tool grinds through material efficiently, significantly reducing the risk of the thermal shock or fracturing that often occurs with standard masonry tools. The bit is built with a reinforced shank for stable operation at higher diameters, ensuring that even large holes remain perfectly circular and clean-edged. It is an essential tool for high-end kitchen and bathroom renovations where large-scale fixtures meet premium stone finishes.
Key Features
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25mm Wide Diameter: Optimized for larger plumbing conduits, drainage lines, and significant structural fixings.
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High-Performance Diamond Edge: Bonded with industrial-grade diamonds to ensure a sharp, aggressive cut through the hardest stone.
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Anti-Chipping Engineering: Designed to provide a clean entry and exit, protecting the aesthetic value of the stone surface.
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Robust Tool Geometry: Built to handle the increased resistance of large-diameter drilling while minimizing vibration.
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Protective Packaging: Supplied in a secure tube to maintain the integrity of the diamond surface between jobs.
Benefits
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Maximum Clearance: Provides ample space for modern plumbing fittings, reducing the need for difficult on-site adjustments.
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Superior Durability: The heavy-duty diamond bonding allows for a long service life even when used on the most abrasive materials.
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Enhanced Safety for Stone: Minimizes the lateral pressure on slabs, drastically reducing the chance of cracking or breaking expensive material.
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Professional Speed: Slashes installation time by delivering rapid, consistent boring through granite and marble.






















