Achieving accurate, chip‑free holes in brittle materials such as glass, ceramic, porcelain, and tile requires a specialized drilling solution — and the Coro Glass Drill Bit 12mm (5pcs Pack) delivers just that. Unlike general‑purpose bits that struggle with hard, smooth surfaces, these diamond‑enhanced bits are engineered specifically for precision drilling where surface integrity and edge quality are paramount.https://ngonghillsmerchants.com/

Each drill bit in this pack features industrial‑grade diamond abrasive bonded to a hardened steel body. Diamond is the most effective cutting medium for brittle, high‑density materials because its supreme hardness allows it to maintain sharp cutting edges even under demanding conditions. The cutting segments are strategically positioned to initiate smooth entry into the material with minimal radial pressure, drastically reducing the risk of cracking or chipping — a common problem with carbide or standard HSS bits.

The 12mm diameter size is widely used in Kenyan construction and finishing works, especially for plumbing penetrations, cable pass‑throughs, and fixture mountings. Contractors and DIY professionals working on bathroom and kitchen tiling, glass partition installations, or decorative hardware assemblies will find this pack particularly useful due to its consistency and repeatability across multiple drill points.

The flute geometry is designed for efficient debris evacuation while maintaining stability during drilling. This results in smoother operation, reduced vibration, and better control — attributes that are especially beneficial when working with handheld drills or drill stands. For best results and extended bit life, wet drilling is recommended, as water helps dissipate heat, flush debris, and minimize silica dust — an important safety consideration in enclosed spaces. Controlled dry drilling at slow RPM is also feasible on thinner tiles or glazed surfaces where water access is limited.

Supplying this product in a practical 5pcs pack adds value for professionals and serious DIYers alike, ensuring that a fresh bit is readily available when one wears out — extending productivity and reducing downtime. This is particularly advantageous on larger projects or in busy fabrication settings where multiple holes are required in succession.

From a compliance and procurement perspective, Ngong Hills Merchants ensures that all tools and accessories, including this Coro Glass Drill Bit pack, are backed by eTIMS‑compliant invoices — a mandatory requirement for business tax deductions and proper accounting documentation in Kenya as of 2026. This aligns both technical performance and regulatory compliance for registered contractors and businesses.

Whether you are installing plumbing fixtures, preparing cable entries, fitting decorative hardware, or working with mirror and tile finishes, the Coro Glass Drill Bit 12mm (5pcs Pack) delivers consistent, professional‑grade performance.

Specifications & Key Features of Coro Glass Drill Bit 12mm (5pcs Pack)

Use Cases & Applications of Coro Glass Drill Bit 12mm (5pcs Pack)

• Drilling 12mm holes for plumbing pipe and cable pass‑throughs in tiled walls and glass partitions.

• Creating anchor points for shelving, brackets, and decorative hardware on ceramic and porcelain surfaces.

• Precision drilling for mirror and glass panel installations in bathrooms, offices, and commercial interiors.

• Larger tiling or renovation projects where multiple holes are required in succession.

• DIY and professional applications where surface integrity and consistent performance matter.

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