For years, Schaedler has been known for the finest "Mylar" rulers available. All Schaedler rulers are made of .007" thick and 2 1/2" wide stabilized polyester which is tear-resistant and resistant to expansion due to humidity or temperature changes.
All Schaedler Precision Rules (SPRs) share the following attributes:
- They’re accurate. Calibrated from Grand Master standards, they have an accuracy tolerance of better than .00024" or 1/4,000ths of an inch! That’s less than your fingernails grow in an hour.
- They’re convenient. There’s extra grasping room at the left — the most-used end — of each scale; and even the hang-holes are large enough to fit over pushpins.
- They’re dimensionally stable. The .007" polyester film base withstands expansion and contraction due to temperature or humidity changes.
- They’re adaptable. The flexible film substrate permits undistorted measurements around curved, concave, convex and dimensional objects.
- They have superior legibility. The translucent, but not transparent, film base permits the reading of fine graduations over dark or black originals. Whether read against a computer display screen, around dimensional objects, or on warped or flat surfaces, increment marks are always crisp, legible and glare-free.
46-IM Inch/Metric - contains one 12" ruler. Standard inches in 64ths along the top edge; metric millimeters/centimeters on the bottom edge; printers points/picas down the center.
46-DIP Decimal-Inch/Pica Single - Contains one 12" ruler. New decimal inches in 100ths along the top edge; DTP (desktop publishing) points/picas on the bottom edge; newspaper agate lines down the center.
46-DP Original Double Pack - contains one each of the above two rulers.
46-IP Inch/Pica/Agate Single - contains one 12" ruler. Standard inches in 64ths along the top edge; printers points/picas on the bottom edge; agate lines and sample point rules and bullets down the center. Re-issued by popular demand.
18-IMP Inch/Metric/Pica Eighteen - contains one 18" ruler. Standard inches in 64ths along the top edge; metric millimeters/centimeters on the bottom edge; decimal inches in 100ths and DTP points/picas along the interior slots. Easily divided into two separate 18" rulers. Includes sample point rules, bullets, and ballot boxes.
- Models: MIS-SPR46IM, MIS-SPR46DIP, MIS-SPR46DP, MIS-SPR46IP & MIS-SPR18IMP