D series T Series R Series ZIR Series Polishing Belt Water Plug Metal Fitting Series Cera-cut ZIR Q Disc Star Disk Z.A/ Econo-disk Sabitoron   A fiber disk with outstanding sharpness and long-life. Suited for heavy grinding such as deburring of welded portions in vehicle repair, removing rust, and removing surface coating. It can also be widely used for grinding and sanding stone, concrete, and non-ferrous metal. Abrasive grain AA CC Backing Vulcanized fiber Adhesive R/R Type Abrasive grain Adhesive Backing Size (mm) Grid 12 14 16 20 24 30 36 40 50 60 80 100 120 150 180 240 QAFD AA R/R VF 100x15.9 (model 4)     O O O O O O O O O O O   O   125x15.9 (model 5)   O O   O O   O   O O O O       150x22.2 (model 6)     O   O     O   O O O         180x22.2 (model 7)     O O O O   O   O     O O     QCFD CC R/R VF 100x15.9 (model 4) O O O O O O O O O O O O O       125x15.9 (model 5)   O O O O O   O   O O   O       150x22.2 (model 6)   O O O O               O O     180x22.2 (model 7)   O O O O O O           O O     QCFD-S CC R/R VF 100x15.9 (model 4) O O O   O                       125x15.9 (model 5)   O O   O                       150x22.2 (model 6)     O                           180x22.2 (model 7) O   O