"The blade was the only blade of its size in the catalogue. its advertised as been multi-fit (the size of the hole in the centre). when i got home and opend the blade it comes with various size shims to fit into the centre of the blade. these shims are nothing more than poorly made washers. i have tried fitting the blade to 2 saws i have and would fit neither. i tried to return the blad but couldnt because it had been opened. i resorted to making my own shims."