Three-point inside micrometer for precise measurement of the inside diameter of cylinders or tubes.

• Accuracies according to DIN 863
• Reading: 0.001 mm up to 12 mm; 0.005 mm from 12 mm
• suitable for blind holes and through holes
• Carbide measuring surfaces
• Reading parts matt chrome-plated
• Emotional ratchet
• with adjustment ring and extension
• in aluminum case

*Design as a two-point internal micrometer

Measuring range (mm)	Reading (mm)	accuracy (mm)	A (mm)	L (mm)	Adjustment ring (mm)
3-4*	0.001	0.004	-	22.5	4.0
4-5*	0.001	0.004	-	22.5	5.0
5-6*	0.001	0.004	-	22.5	6.0
6-8	0.001	0.004	1.4	55	6.0
8-10	0.001	0.004	1.4	55	8.0
10-12	0.001	0.004	1.4	55	10.0
12-16	0.005	0.005	0.5	80	16.0
16-20	0.005	0.005	0.5	80	16.0
20-25	0.005	0.005	0.5	90	25.0
25-30	0.005	0.005	0.5	90	25.0
30-40	0.005	0.005	0.5	97	40.0
40-50	0.005	0.005	0.5	97	40.0
50-63	0.005	0.005	0.5	115	62.0
62-75	0.005	0.005	0.5	115	62.0
75-88	0.005	0.005	0.5	115	87.0
87-100	0.005	0.005	0.5	115	87.0