The 50mm x 1830mm (2" x 72") size is a common size for Knife Grinding machines.
 
Belt kits to enable the production of a quality finished knife, these can also be used for Woodworking tools.
 
These belt kits come in three sizes; Basic, Small and Medium, see below for details on the Basic Pack.
 
The Basic Pack 
A minimum number of belts to enable production of a quality satin finished knife, contains the following belts;
 
  Grinding primary bevels prior to heat treatment:
    - 3 x P40 grit Ceramic belts 
    - 2 x P120 grit Ceramic belts
 
  To satin finish:
    - 1 x Fine Surface Conditioning belt