C20 CombBind Machine features a staging area to hold documents before punching or binding, and a vertical punch for better workflow and paper alignment. Binding machine punches up to 20 sheets of letter-size, oversize and A4 documents and binds up to 330 sheets. Ideal for medium to large offices with moderate and regular usage. Low-profile combs with unique comb opening guide help load spines easily. Binding machine also includes an ergonomic low-force punch handle and QuickStep user guide.