These die sets are designed for use with the Renz 500e, one of the biggest and baddest binding punches available on the market today. Designed for punching up to twenty inches in length with a massive punching capacity die sets are available for most major punching patterns. However, one unique thing about 500e dies is that they are also available in two piece dies with a thumbcut for calendar binding. The pins on these dies are disengageable for punching virtually any document length. Choose from die sets for combs, coil or wire binding.