The crochet hook or hook needle

To start crocheting, we need a basic tool: the crochet hook. It may seem simple, but knowing its parts, materials, and sizing will help you choose the most suitable one for each project.

What a crochet hook is like

A crochet hook is characterized by having a hook at the tip that allows you to catch the yarn and pull it through the stitches. Just behind the hook is the throat, where the loop rests before you work it.

The thickness of the hook determines the size of the stitch and the final result of the project.

Crochet hook materials

Crochet hooks are made from different materials:

• Steel → for small hooks (ideal for fine yarns such as perlé or lace).
• Aluminum → lightweight and perfect for medium weights.
• Plastic → used for medium and bulky weights; they are usually affordable and lightweight.
• Wood or bamboo → comfortable and warm to the touch, ideal for large hooks.

There are also modern versions with ergonomic handles, a variety of colors, and complete sets for different projects.

👉 Discover our selection of crochet hooks and find yours.

Hook size and its relationship to yarn

The hook size indicates its diameter. The larger the size, the larger the resulting stitch will be.

🔹 Basic rule:

• Fine yarn → small hooks.
• Thick yarn → large hooks.

For example:

• Fine cotton yarn is crocheted with a 2–3 mm hook.
• Thick wool is crocheted with a 6–8 mm hook.

It is always advisable to check the yarn label, where you will find the recommended hook size for that material.

International crochet hook size equivalents

When reading patterns in English, different sizing systems from ours often appear. To avoid confusion, here is a crochet hook size conversion chart:

Conclusion

Knowing your crochet hooks well is essential for choosing the right material and getting more enjoyment from every project. Now that you know what they are like, what materials they are made from, and how to read the size equivalents, you are ready to take the next step.

👉 Continue to the next chapter: Chapter 3 – Starting the project: the chain and the stitch

👉 Back to the index of the ONLINE COURSE TO LEARN HOW TO CROCHET