The Model 1600 uses a wet process with up to six different levels of micro-abrasives to clean discs, remove light abrasions, deep scratches or even intentional gouges, making it the machine with the widest repair range on the market. Need to remove only fingerprints? Simply run Stage 1 for 30 seconds and you're done! Run two stages to remove abrasions or scuff marks, or remove the average scratch using only three stages. The Model 1600 is designed to repair all depths of scratches quickly and efficiently. One machine can be used as a complete solution, or use several machines in a row to create a high-volume disc repair facility.