Clarke CS4-6D Belt and Disc Sander replacement cog drive belt: Manufacturers Pt Ref WNCS46D70

Please note that Clarke also make other very similar bench sanders that take a different sized belt to the CS4-6D, usually the model of sander can be identified by the sticker on the front of the machine, but if you can't see this have a look for the makers plate which will show which sander you have.