The TP34 is a rack type pusher Tensioner. It handles widths from 1/2" ( 13mm) up to 5/8" (16mm) and up to .020(.51mm) thickness. This is an economy product recommended for light duty use only.
For 1/2" strapping, you will use a FSRN12 Sealer with 403 Seals.
For 5/8" strapping, you will use a FSRN58 Sealer with 503 Seals.