INSIZE 2511 Digital Radius Gage (5-910mm/0.2-35.83")

Range of external radius (R1): 5-910mm/0.2-35.83"

Range of internal radius (R2): 7-910mm/0.3-35.83"

Accuracy (mm): ±0.005R*

*R is the radius to be measured. For example, radius is 100mm, the accuracy is ±0.005x100=+0.5mm

Datasheet