Technical Data:
Series: 155
Product type: Telescoping Gage
Application: Comparing and measuring small-hole diameters and narrow-groove widths
Measuring principle: Spring-loaded plunger expands within a bore or groove and is locked in place; dimension is then measured with an outside micrometer after extraction
Measuring range: 8 - 12.7 mm

Dimensions:
L=110 mm
Dia.D=5 mm
Dia.d1=4 mm
Dia.d2=3 mm
Clamp incorporated in body