12mm Drill Bits

Achieve professional, precise results across your projects with our 12mm drill bits. Built to deliver clean, accurate holes, these robust bits drive through tough materials quickly while resisting wear and tear during heavy use. Whether you are grafting on a major commercial build, installing heavy-duty fixings, or tackling substantial metalwork, having the exact diameter bit in your kit maximises efficiency and stops frustrating project delays.

Choose from a comprehensive selection of high-performance profiles designed to handle your specific tasks. Our range includes heavy-duty SDS plus and masonry bits for boring into dense brickwork, heat-resistant cobalt and HSS titanium options for metals, and precision diamond-tipped bits for delicate tile and glass. For versatile site work, we also supply multi-material bits that tackle various surfaces without the need to constantly swap out your accessories. Secure reliable results with trade-quality stock from Bosch, Toolpak, and DeWalt.

Frequently Asked Questions | FAQs

When should I use a 12mm SDS plus drill bit?

Use a 12mm SDS plus drill bit when operating a heavy-duty hammer drill on dense materials like concrete, brick, and blockwork. The specialised shank design allows the bit to slide back and forth, maximising the impact force and preventing slipping for fast, efficient drilling on busy construction sites.

What are the benefits of a 12mm cobalt drill bit?

Cobalt drill bits provide exceptional heat resistance, making them the ideal choice for boring into highly abrasive and hardened materials like stainless steel or cast iron. They are perfect for heavy-duty, continuous use, as they maintain their cutting edge for longer than standard HSS bits.

Can I use a 12mm multi-material drill bit for bathroom fittings?

While a multi-material bit can cut through ceramics, a dedicated 12mm diamond or tile drill bit is a much safer choice for glazed surfaces. These bits feature a specially designed carbide tip that pierces hard tile without wandering, cracking, or shattering the surface, ensuring a clean and secure fit for your larger fixtures.