Technical Data:
Tape bore meter
Measure internal diameter and circumference of soft materials such as tubes and belts
Range dia.D: 22-40mm
Measuring depth: 15-60mm
Graduation: 0.1mm
Accuracy: +/-0.2mm

Dimensions:
dia.A=21mm
dia.d=21.5mm
Drawing reference dimension=30mm
Drawing reference length=167mm
Tape thickness/reference=0.120mm

Remark:
Rotate handle to loosen or tighten tape