Digital caliper in hardened stainless steel. 5 figure liquid crystal display and minus sign. mm/inch conversion. Set to zero in any position. RS232C output to printer port. Slider locking screw. Battery powered. Automatic switch-off. Suitable for measuring grooves and internal seatings. With interchangeable, lapped, round-tipped points. Serial number. Manufactured as per DIN 862. Supplied in case.