Technical Data:
Series: 125
Product type: Screw Thread Micrometer, Fixed Anvil/Spindle Tip Type
Application: Direct measurement of screw pitch diameter
Fixed anvil type
Thread system: Metric / Unified 60 deg threads
Constant measuring force: Ratchet Stop
Graduation: 0.01 mm
Accuracy: +/-[0.0002 + 0.00005(L/3)] in, L = maximum range in inches
Measuring range: 0 - 25 mm
Thread to be measured: 0.4 - 0.5 mm / 64 - 48 TPI

Dimensions:
L=0 mm
a=13.8 mm
b=25 mm
Common longitudinal dimensions=25 mm; 6.8 mm; 15 mm; 66.9 mm
Minimum measuring length details=4.9 mm for lower-range configuration / 4.7 mm for upper-range configuration
Spindle Dia.=6.35 mm
Body Dia.=18 mm