If you need a comprehensive collection of bits, this 55-piece drill bit set from Dormer is just the thing. It includes bits sized from 1 to 13mm in diameter in 0.5mm increments, so you can create holes of many sizes. There are also bits to cover specialist tasks, including 3.3, 4.2, 6.8 and 10.2mm options. They're all contained in the handy DRILLBOY workbench display case that doubles as protective storage.

• HSS construction means the bits are resistant to wear and impact
• Suitable for hand or machine tooling for versatility

• Workshops
• Metalworking
• Machine tooling

Yes. In this set, you get three each of the smallest (1 to 4mm) bit sizes, two each of the mid-range (4.2 to 8mm) options and one each of sizes 8.5 to 13mm. This means you have spares at hand for many sizes if you misplace or damage a bit.