Shredder Security Levels Guide



Security Level Max Shred Size Strip Cut (inches) Max Shred Size Cross Cut (inches) Max Shred Size Strip Cut (mm) Max Shred Size Cross Cut (mm)
Uses
Level 1 3/8" 3/8" x 1 1/2 - 3 1/8" 10.5mm, 11.8mm 10.5 x 40-80mm For shredding of common home or office documents.
Level 2 1/8", 1/4" 1/2" x 9/16 - 2",
1/4" x 9/16 - 2"
3.9mm, 5.8mm 7.5mm x 40-80mm For shredding more sensitive internal-office or home documents.
Level 3 1/16" 1/8" x 1 1/8 - 2" 1.9mm 3.9mm x 30-50mm For shredding of confidential documents.
Level 4   1/6" x 9/16 - 5/8"   1.9mm x 15mm For shredding of secret documents.
Level 5   1/32" x 3/8 - 1/2"   .78mm x 11mm For top secret document shredding.
Level 6   1/32" x 5/32",
1/26" x 1/5"
  1mm x 4-5mm For ultra-secure shredding for the most sensitive top secret documents. NSA/CSS, and DOD approved for top secret and classified document shredding.