Learn how to use the cable key to tighten your Knit Picks Options Interchangeable Knitting Needles. Each needle tip has a hollow base that is grooved to accept the threaded stem of the cable. To insure a secure fit, use a cable key to tighten the knitting needle tip. You can also use the cable key to unscrew your knitting needle when you are ready to start a new knitting project.
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