Technical Data:
Product type: Tubular Inside Micrometer, Extension-Pipe Type
Measurement: Inside dimension
Reference setting: Optional reference gage required for accurate setting
Measuring faces: Carbide-tipped
Graduation: 0.01 mm for metric models / 0.001 in for inch models
Series: 140
Measuring range: 40 - 80 in
Micrometer head stroke: 2 in
Extension pipe quantity: 5
Main unit range: 40 - 42 in

Content:
Extension pipes:
2 in
4 in (2 pcs.)
8 in
20 in