|
Common Needle Spacings
|
American |
English (Imperial) |
Metric |
Sometimes expressed as |
|
25 mils |
0.025" |
0.635mm |
|
|
|
|
0.636mm |
1/(5 p) cm |
|
30 mils |
0.03" |
0.762mm |
|
|
|
|
1.000mm |
|
|
40 mils |
0.04" |
1.016mm |
|
|
50 mils |
0.05" |
1.27mm |
|
|
62 mils |
0.062" |
1.575mm |
|
|
62.6 mils |
0.0626" |
1.59mm |
|
|
|
|
1.591mm |
1/(2 p) cm
|
Most Jandel probes are available with needle spacing anywhere in the range from 20 mils (0.5mm) up to 62.6 mils.
Common Needle Radii
|
American |
English (Imperial) |
Metric |
|
1.6 mil |
0.0016" |
40µ |
|
2 mil |
0.002" |
50µ |
|
4 mil |
0.004" |
100µ |
|
8 mil |
0.008" |
200µ |
|
10 mil |
0.01" |
250µ |
|
20 mil |
0.02" |
500µ |
Jandel probes are available with tip radii anywhere in the range from 0.5 mils (12.7 microns) up to 20 mils (508 microns).
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