Features:

1.measure range:3-4mm

3-4mm

4-5mm

5-6mm

6-8mm

8-10mm

10-12mm

12-16mm

16-20mm

20-25mm

25-30mm

30-40mm

40-50mm

50-63mm

62-75mm

75-88mm

87-100mm
2.Highly durable 
3.Measurement can be taken closer
4.has extension bar

5.Precision:0.001mm