The Formax FD 666 continuous form, tractor feed burster is capable of bursting forms with up to 4 parts at a speed of up to 350 feet per minute. Its slitters can trim margins up to 3/4". The Formax FD 666 burster features a base for added storage and height. Base is included. OPTIONS: Polyethylene Rollers, Power On/Off Key Lock, Safety Cover Key Lock, 14" Form Length Adapter, Resettable 6-Digit Photo Cell Counter, Static Eliminators, Vertical Folder, Power Drop Deep Stacker, Sound Reduction Kit. The Formax FD 666 burster can be custom ordered to suit the needs of the customer.