Specifications: Belt size: 1/2 inch, 3/8 inch and 1/4 inch Drum core size: 1/2 inch, 3/8 inch and 1/4 inch Belt material: alumina Package Including: 501/2 inch abrasive belt (120 grit) 503/8 inch abrasive belt (120 grit) 50 * 1/4 inch abrasive belt (120 grain size) 301/2 inch abrasive belt (80 grit) 303/8 inch abrasive belt (80 grit) 30 * 1/4 inch abrasive belt (80 grit) 301/2 inch abrasive belt (240 coarse sand) 303/8 inch abrasive belt (240 coarse sand) 301/4 inch abrasive belt (240 coarse sand) 41/2 inch drum shaped mandrel 4*3/8 inch drum shaped mandrel 4 * 1/4 inch drum shaped mandrel 2 *Self-tightening drill chuck 1 * Combination wrench Notice: Please allow slight dimension difference due to manual measurement. Please consider the actual sizes in the listing as the pictures are generally enlarged to show detail. Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully. Due to the light and screen difference, the item's color may be slightly different from the pictures. Thanks for your understanding. Keywords:Sander;Kit;Combination;Wrench;Dremel These polishing brands include 3 abrasive grains (80 grains, 120 grains, 240 grains) and 3 diameters (1/2", 3/8" and 1/4"), each containing 50 grains and 120 grains each 80 and 240 tablets The drum-shaped mandrel with self-expanding rubber pads makes the belt firmly close to the mandrel and obtains a better finish Ordinary and standard size drum sander sets are widely used for smooth surfaces and curved edges They are suitable for polishing soft and hard materials They are very suitable for improvement, artwork, wood products and other DIY finishing and processing