I just purchased a Freud SD508 8" super dado set for my Delta
There is a compression washer (cupped) that normally sits between the
nut and the blade. However, with this washer installed, I cannot come
close to fitting the entire stack on the arbor. Even at 3/4" stack,
the nut just not have any thread exposed on the outside (it seems to be
snug but I would feel better if it had some thread exposed).
Is that washer necessary when using the dado blade? I would use it
when it fit but if I used the larger stacks without it do you think it
would be a problem?
Thanks for your help.
You've probably noticed that the dado blade is thicker than a normal blade,
anyway, so don't worry about it on any stack. On my saw it's a task to pull
the blades off, since any tilt binds them on the shaft.
In virtually all the comparisons in magazines, the Forrest has come out on
top. It has a negative hook which makes a cleaner dado, eve in plywood.
Since I already have two old Freud dado sets that do a reasonable job, it
will be a long time before I will find out if it is worth the extra price.
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