210PB Specifications Punch Capacity/Sheets 20 Manual or Electric Punch Manual Max. Bind Thickness (pages) 425 Max. Comb Diameter (in.) 2 Max Binding Length (in.) 12 The HOP 210PB - 210PB Combination Punch & Bind. Punches and binds any booklet up to 12 in in length and 2 in thick. Easily punches 20 sheets of paper at a time. FEATURES INCLUDE: disengageable dies, adjustable margin depth, and comb spreader controls.