Interchangeable Cables, Keys and Connectors

What is actually in the case

Two join types, and the practical difference

Screw joins - ChiaoGoo, Knitter's Pride - thread the tip onto the cable, and a small key gives you the leverage to tighten it properly. The join is very secure and it is the one that works loose if you do not use the key.

Click joins - addi - twist and lock with no threading and no tool. Faster, nothing to lose, and slightly bulkier at the join.

Do brands mix? Mostly no

This is the question people ask after buying a second set, and the honest answer is that you should assume incompatibility.

• Thread pitch and diameter differ between manufacturers, so a screw tip from one brand will not seat correctly on another's cable even when it starts to turn.
• Click systems are proprietary by design and do not interoperate at all.
• Within a brand, lines usually do mix - a manufacturer's own tips and cables are generally cross-compatible across their range, sometimes with a size caveat at the small end.
• Third-party adapters exist and are a compromise. They add length and another point of failure at the join, which is the last place you want one.

Practically: pick a system and stay in it. That is the strongest argument for buying a complete set rather than accumulating pieces, and it is covered in best interchangeable knitting needle sets.

Which spares are worth buying

1. A second cable in your most-used length. The real value of an interchangeable set is having two projects live at once, and that needs two cables, not two sets of tips.
2. End stoppers, several. They are what let you take the tips off a project and use them elsewhere. Sets ship with two; four is more useful.
3. A spare key. Small, cheap, easy to lose, and the set is much less pleasant without one.
4. A longer cable than you own. Most sets top out at 40in and a blanket wants more - see best needles for blankets.
5. Not more tips. Size gaps are rare in a complete set. Length gaps are constant.

Cable care

Cables outlive tips if you look after them, and the failure modes are predictable.

• Store them straight or loosely coiled. A cable stored tightly wound takes a set, which is memory you have added yourself.
• Never yank a stuck join. Twisting a tip against a seized cable is how a cable's metal fitting separates from its nylon coating.
• Hot water relaxes a coil. A few seconds in hot - not boiling - water and then hung straight fixes most temporary memory.
• Retire a cable that has kinked. A permanent kink snags a stitch every pass and it will not come out.
• Keep them out of the stash bin. They tangle with everything - see best yarn storage solutions.

The stopper trick most people miss

End stoppers are usually thought of as a way to park a half-finished project. They do something more useful than that.

Cap both ends of a cable and you have a stitch holder that costs nothing extra - live stitches for a sleeve or a pocket, held safely, on a cable you were not using. It is tidier than waste yarn and the stitches stay oriented correctly, which waste yarn does not guarantee.

When fixed circulars are the better buy

Interchangeables are not automatically the right answer, and it is worth saying so.

• 16in and shorter cannot be made from most interchangeable systems, because the two tips alone are 10in. Hats need a fixed 16in.
• One size, used constantly - a sock knitter who works 2.5mm and nothing else - does not need a set.
• Nothing to work loose. A fixed circular has no join to retighten and no key to lose.
• Cost, for a small range. Three fixed circulars cost far less than any set.

Our cable lengths page covers which lengths a project needs; this page is about the hardware that delivers them.