4-40 In, .001 In, Mechanical Extention Rod Type Inside Micrometer, Extention Rods (1 In, 2 In, 3 In, 6 In, 9 In, 12 In, 14 In, 16 In, 17 In, 19 In)
Features
- Wide range of ID measurements by combining extension pipes and anvils with micrometer heads.
- Supplied in a fitted wooden case.