표 1. | Table 1. Tip별 내/외경 치수 | Inner/Outer Diameter dimensions for each tip

	15G	17G	18G	21G	23G	25G
Outer Diameter (mm)	1.83	1.47	1.24	0.81	0.63	0.51
Inner Diameter (mm)	1.53	1.17	0.96	0.56	0.39	0.30