3M 36221 Sandpaper Roll, 2 3 4 in W x 90 ft L, Ceramic, 180 Grit, C Wt Paper, PSA, 321U, 5 PK G0379885 Fastening Torque 900 ft lb Fastening Torque 900 ft lb Explosion Proof Voltage Rating 125V AC Current Rating 20 A Features Factory Sealed NEMA Enclosure Rating 3 Adhesive backed cool cutting sandpaper sheets for all surfaces have an open coat ceramic abrasive applied to a paper backing Roll Grit 180 Roll Width 2 3 4 in Roll Length 90 ft Abrasive Material Ceramic Grit 180 Abrasive Grade Fine Backing Material Paper Backing Weight C Coating Coverage Open Attachment Type PSA Resistance Properties Load Color Blue Vacuum Hole Pattern Non Vacuum Country of Origin Canada