Technical Data:
Series: 133
Product type: Tubular Inside Micrometer, Single-Rod Type
Measurement: Inside dimension
Measuring faces: Carbide-tipped
Reference setting: Reference gage required before measurement
Optional reference-setting methods: Gage Block Accessory Set, CERA Inside Micro Checker, or setting ring
Graduation: 0.01 mm for metric models / 0.001 in for inch models
Measuring range: 50 - 75 mm
Accuracy: +/-3 um

Dimensions:
Overall body reference length=50 mm
Central sleeve/reference length=37 mm
Left-end reference length=3.5 mm
Right-end reference length=3 mm
Measuring tip Dia.=8 mm
Rear measuring tip Dia.=8 mm
Body/reference Dia.=15 mm
Measuring faces=SR10 both ends