technical data:properties:binder: synthetic resingrain: electrocorundumwidth: 115 mmlength: 10 mgranulation: 240klingspor nro 400 non-woven roller – a versatile tool for surface finishingthe nro 400 non-woven roll with electrocorundum coating is perfect for surface finishing. As a truly versatile product it stands out for its excellent quality at a reasonable price. Its flexibility enables optimal adjustment to the workpiece. The non-woven roll with electrocorundum coating is recommended for refining metal and wood surfaces.electrocorundum – ideal for machining metal and wood surfacesthe nro 400 non-woven rolls use electrocorundum as the abrasive material. Synthetic resin is used as the binder holding the abrasive grains. This ensures among other things a precise fit to the workpiece. The non-woven roll can be used for machining surfaces– metal stainless steel and wood.the nro 400 non-woven roll from klingspor is available in very fine fine medium and coarse grits. The choice of grit depends on the specific application. Fine and very fine grits are recommended for smoothing and creating a refined scratch while medium and coarse are recommended for cleaning and roughening surfaces. The roller can be used for general surface finishing without clogging the grain.easy and efficient surface finishing by hand and with power toolsthanks to its excellent abrasive properties and ability to adapt to the workpiece the nro 400 non-woven roller enables easy and efficient surface finishing. An exceptionally favorable price-to-quality ratio. The non-woven roller is suitable for use with hand sanders and for manual surface finishing. The material can be easily and evenly cut to the desired size.**the presented photos are for illustrative purposes only.