Table 1

Needles measures and characteristics

External diameter

Hub color

Internal diameter

Core area (mm2)



Gauge

Millimeter

Inches

Millimeter


16 G1 1/2

1,60 × 40

white

0.047

1,19

1,1

18 G1 1/2

1,20 × 40

pink

0.033

0,83

0,53

21 G1 1/4

0,80 × 30

green

0.020

0,5

0,2


Pires et al. Diagnostic Pathology 2006 1:14   doi:10.1186/1746-1596-1-14

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