Crochet hooks:

2 mm
2.5 mm
3 mm * 3 (one steel, one bamboo, one aluminium)
3.5 mm
4 mm * 2
4.5 mm
5 mm
6 mm
7 mm (plastic)
8 mm (plastic)
10 mm (plastic)

Tunisian crochet hooks:

4.5 mm (short – it’s really a normal-length crochet hook, but it has the knob on the end and the straight handle)
5 mm

Straight knitting needles:

3 mm
4.5 mm (bamboo)
6 mm (wood – need a good sanding)

DPNs:

2.5 mm
3 mm

Circular needles:

2 mm
2.5 mm
3.5 mm * 2
4.5 mm
5 mm

 Cable needles:

2.5 mm
4.5 mm 

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