Seems a bit of a struggle with that gear attachment - a bit complex for no apparent reason, rather than accurate-ish shape ?
BTW, I have the Airwaves saw blades, and although they work very well, I found a problem.
They are supposed to fit the Swann Morton No..3 handle ( I already had one handle, but bought another specifically for use with the saw blades ), but they don't !
I found that the narrowing "slot" on the blades will not allow the blade to fully engage onto the "ridge" of the handle, causing a slight bend at the rear of the blade, and therefore it's not completely secure.
The blades can be used without the handle, and have an etched "grip" area, but my knackered hands don't allow me to use them this way.
I need to check-out the SM No.4 handle, as I think the Hannant's instructions may be incorrect.