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
Set range: 8 - 150 mm

Content:
155-127 - 8 - 12.7 mm
155-128 - 12.7 - 19 mm
155-129 - 19 - 32 mm
155-130 - 32 - 54 mm
155-131 - 54 - 90 mm
155-132 - 90 - 150 mm