Drilling larger holes in brittle materials such as glass, ceramic tiles, porcelain, and mirrors presents unique challenges due to the risk of cracking, chipping, or surface damage. The Coro Glass Drill Bit 20mm is specifically engineered to address these challenges by combining industrial‑grade diamond abrasive with robust steel construction for controlled, clean drilling performance.

This drill bit’s cutting edge features precision‑bonded industrial‑grade diamond grit, which provides optimal hardness and wear resistance for penetrating dense, brittle surfaces. Diamond is the most effective cutting medium for glass and similar materials because it reduces friction and heat buildup while maintaining a sharp and durable cutting surface. The result is a consistently smooth hole with minimal micro‑fractures or edge breakage — a key requirement for professional installations.

The body of the Coro 20mm Glass Drill Bit is designed for strength and stability, reducing vibration during drilling to ensure better control and cleaner results. Reduced vibration is especially important when working with large diameter bits on delicate surfaces, as instability can cause stress fractures that compromise both the hole and the surrounding material.

When used with a compatible drill and correct drilling technique, the Coro 20mm bit performs well with controlled wet drilling. Introducing water during drilling helps dissipate heat, flush debris, and reduce dust — which is particularly valuable in enclosed or finished spaces. Controlled, slow‑speed dry drilling may be acceptable for thinner materials where water is difficult to apply.

In Kenyan construction and finishing applications, a 20mm hole size is commonly required for plumbing penetrations, conduit entries, and mounting large fixtures. Whether working on bathroom tiling, kitchen backsplashes, glass partitions, or decorative installations, the Coro 20mm Glass Drill Bit provides the precision and durability needed to achieve professional outcomes.

Ngong Hills Merchants supplies this drill bit with quality assurance and eTIMS‑compliant invoicing — essential for business tax deductions and record‑keeping in 2026 for registered contractors and enterprise purchasers. This ensures that your tool procurement is both technically sound and compliant with Kenyan regulatory and financial documentation standards.

Whether you are a professional tiler, plumber, electrician, or a homeowner undertaking specialist installations, the Coro Glass Drill Bit 20mm delivers dependable performance and clean, precise holes in brittle surfaces.

Specifications & Key Features of Coro Glass Drill Bit 20mm

Use Cases & Applications of Coro Glass Drill Bit 20mm

• Creating 20mm holes for larger plumbing pipe entries in tiled walls and glass partitions.

• Drilling openings for electrical conduits through ceramic and porcelain surfaces.

• Mounting large decorative fixtures, brackets, and shelving in high‑finish interiors.

• Precision drilling in mirrors and glass panels for hardware installations.

• Renovation and fabrication projects where clean, professional‑grade holes are essential.

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