Durable metal construction; exceptionally flexible functionality.Fully-adjustable, high-quality punch heads: 9/32", 11/32" or 13/32" holes (middle head also disables for two-hole punching).Paper guide adjusts for letter or legal sheets.Seven-hole punch capability and adjustable margin depth.Long lever-handle design makes manually punching larger stacks of paper easier.Full base; non-marring removable chip holder.Additional punch heads (A7074866 - 9/32" size, A7074867 - 11/32" size and A7074868 - 13/32" size) sold separately.