The needles for sewing machines come in different sizes for different materials
The external diameter is measuerd at a non-reinforced point on the shaft above the scarf.
|
External Diameter
|
Metric (European)
|
US (Singer)
|
|
0.55
|
55
|
6
|
|
0.60
|
60
|
8
|
|
0.65
|
65
|
9
|
|
0.70
|
70
|
10
|
|
0.75
|
75
|
11
|
|
0.80
|
80
|
12
|
|
0.85
|
85
|
13
|
|
0.90
|
90
|
14
|
|
0.95
|
95
|
15
|
|
1.00
|
100
|
16
|
|
1.05
|
105
|
17
|
|
1.10
|
110
|
18
|
|
1.20
|
120
|
19
|
|
1.25
|
125
|
20
|
|
1.30
|
130
|
21
|
|
1.40
|
140
|
22
|
|
1.50
|
150
|
NA
|
|
1.60
|
160
|
23
|
|
1.70
|
170
|
NA
|
|
1.80
|
180
|
24
|
|
1.90
|
190
|
NA
|
|
2.00
|
200
|
25
|
|
2.30
|
230
|
26
|
|
2.50
|
250
|
27
|
|
2.80
|
280
|
28
|
|
3.00
|
300
|
29
|
The size of the needle required depends on the nature of the material being sewn,
|
Metric
|
Material
|
|
<= 70
|
very light
|
|
75 to 100
|
light
|
|
105 to 140
|
medium
|
|
>= 160
|
heavy
|
