Series 531 With thumb clamp. The jaw can be moved only when spring loaded thumb clamp is depressed. The MITUTOYO line of precision vernier instruments offer a wide range of precise tools for measuring accurately in inches and millimeters. All MITUTOYO Instruments are precisely made of the best quality hardened stainless steel throughout, to insure long life and continuous precision. Graduation photo engraved from a glass master plate for maximum accuracy. Made of fully hardened stainless steel throughout. Satin-chrome finish. Raised sliding surfaces prevent defacement and wear of the graduations; clear black engravings. All measuring surfaces are ground and lapped for extreme accuracy. Jaws designed for outside, inside and step measurements. All calipers are supplied in a fitted case.
