3.5mm Drill Bits

Execute precise, heavy-duty drilling on site or in the workshop with our robust range of 3.5mm drill bits. Engineered for maximum durability, these bits drive through tough materials quickly, ensuring clean, accurate holes every time. Whether you are grafting on a commercial installation or completing detailed home renovations, having the exact diameter on hand maximises your efficiency and prevents frustrating project delays.

Choose from a selection of high-performance profiles designed to handle your specific application. Our range includes heat-resistant cobalt options for boring into hard alloys, alongside friction-reducing HSS titanium bits that provide an extended lifespan during repetitive work. We also stock versatile multi-material and long-reach jobber designs to tackle awkward angles. Secure reliable, professional results with stock from trusted manufacturers like Bosch, DeWalt, and Draper.

Frequently Asked Questions | FAQs

When should I use a 3.5mm cobalt drill bit?

Cobalt drill bits offer excellent heat resistance, making them the ideal choice for boring into highly abrasive and hardened materials like cast iron or stainless steel. They withstand heavy-duty site work without rapidly losing their cutting edge.

What are the advantages of a 3.5mm multi-material drill bit?

A multi-material drill bit saves you time on site by allowing you to drill through masonry, wood, plastic, and metal without needing to constantly change your setup. This makes them highly efficient for general installation work and varied home renovations.

Why choose a 3.5mm long drill bit over a standard jobber bit?

Long drill bits feature an extended flute and shank, providing the extra reach required to drive through thicker materials or access awkward, recessed areas. Standard jobber bits offer excellent rigidity for everyday use, but long bits are essential for deep-hole drilling tasks.