The tubular inside micrometer head is combined with extension rods (pipes) and anvils. It has a range of 100 to 125 mm.
The tubular inside micrometer head is combined with extension rods (pipes) and anvils. It has a range of 100 to 125 mm.
| Range | 100 to 125 mm | 
| Travel of Micrometer Head | 25 mm | 
| Accuracy | +/-(3+n+L/50)?m L=Maximum measuring length (mm) n=number of rods Fraction rounded up | 
| Graduation | 0.01 mm or 0.001" |