Having Sheet Capacity 8 to 10 at high level security (level 4), great for shredding top secret and classified papers and documents with shred type of micro-cuts into unreadable 3/32" x 19/32". The GBC ShredMaster 4500S provides a low level of security and is ideal for shredding documents that do not contain any personal or identifiable information and is designed to accommodate multiple users. 25 to 30 feet/m. Office Strip-Cut Paper Shredder. Personal Cross-Cut Paper Shredder. CD and Harddrive Shredders.