Two holes punched per inch. 21 total holes along the long edge of a paper.

Three holes punched per inch. 32 total holes along the long edge of a paper.

Four holes punched per inch.

Five holes punched per inch. 19 Ring Wire - 19 ring wire is double loop wire that has been made to fit through holes made by a plastic comb binding machine. 19 ring wire is also known as Spiral-O wire [..]

The type of binding in which single leaves are secured together with an adhesive applied to the textblock spine. In traditional systems animal glue or polyvinyl acetate glues are mostly used, in the m [..]

the space between the boards of a case to accommodate the thickness of the textblock. The inside of this space is stiffened with a spine strip. A hinge area left on either side of the spine strip allo [..]

A book binding similar to a spiral binding but using a round tubular plastic piece with many teeth which fit through small rectangular holes punched into the binding edge of the book. View Sircle Corp [..]

The part of the binding machine that physically punches the paper.

A cylinder looking unit that is used with coil binding machines with a coil inserter. The coil winds around the mandrel before being inserted into the punched document. The size of the mandrel depends [..]

Also known as case binding. A type of binding used in making hard cover books using adhesive to attach the separate cover to the inner sheets.