0-0.50″ Mechanical Micrometer Head Graduation 0.001″ 0.5" Flat Zero-Adjustable Mechanical Micrometer Head (Thimble Diameter: Dia. 13mm, Reverse Reading) Mitutoyo-148-861 US$ 80.41 Min. order: 1 piece ★★★★★ 4.1 (121 reviews) Sold : Login>>