Heavy-duty manual binding machine is designed for frequent use & documents up to 12" wide. It is ideal for large office applications. Punch 19 holes in up to 28 sheets at a time & bind up to 500 sheets with a 2" comb. Vertical document-loading ensures accurate punch alignment. Rotary edge guide accurately centers documents. Removable binding mechanism can be used separately. Built-in comb storage tray has an integrated document thickness guide for added convenience helping you select the proper comb width. Binding machine includes a front-access waste tray, three releasable dies for different document sizes, & binding starter pack.