Paul yes I forgot about the 560 having the reinforced blade carrier, you can just grind the tabs back about 2mm and it can take a standard blade carrier. As for removing the boss it just pops off if you support the underside of the boss with something like a steel block or mash hammer and give it a couple of swift hits with a hammer on the top side. I have fitted a standard blade carrier on a 560, but I did change the boss and then you can use the blades off the 24 inch, now they are a real blade, built for real work, I think that is what I did. Just check the Victa 24 blades are 140mm end to center
