Sealey digital external micrometer 0 25mm 0 1 sealey ak9635d seven button digital micrometer with satin chrome thimble and sleeve large easy to read 9mm high lcd read out display switchable between metric and imperial units zero display in any position plus take relative and tolerance readings auto power off includes serial port connection for computer interface supplied with adjustment wrench and storage case sealey ak9635d digital external micrometer 0 25mm 0 1