Technical Data:
Radius gauge base without digital indicator
Range of external radius (R1): 100-625mm/4-24.606in
Range of internal radius (R2): 100-625mm/4-24.606in
Accuracy: +/-0.005R
Accuracy formula: R is the radius to be measured; for R=100mm, accuracy is +/-0.5mm
Material: stainless steel

Dimensions:
L=100mm
Reference dimension=247mm
Contact radius=R5

Remark:
Digital indicator is not included