Sew Easy Ruler Cutter 4 1/2 Inches x 13 1/2 Inches. The Sew Easy Ruler Cutter is perfect for sewing, patchwork and papercraft. Powerful Cutting. The cutter takes a standard 45mm rotary blade and will cut up to Fabric - 6 thickness. 13 1/2 Inch Length. The longer length enables cutting the entire width of a standard patchwork fabric bolt. Clear Markings. Featuring easy to read measurements at 1/8 Inch, 1/4 inch, 1/2 inch, and 1 inch increments with 30, 45. and 60 degree angles. Safety Cutting. When the cutting action is finished the blade retracts automatically into the carriage. In the lock position, the blade is fully secured. Fixed Cutting Depth. The ruler cutter system limits the cutting depth guarding against deep cuts into the cutting mat and reduces wear on the cutting blade. Quick Change Blade. The blade is quick and easy to replace without screws and springs. ER4185