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Forum topic by generic posted 02-09-2015 02:28 AM 827 views 0 times favorited 2 replies Add to Favorites Watch
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105 posts in 1567 days

02-09-2015 02:28 AM

Topic tags/keywords: question planer blade

I just picked up a Grizzly G1021 planer. I paid more than I was hoping ($500) to but after listening to the story (husband passed away 2 years ago and widow found out she has bone cancer, son who is only 10-yr old) I didn’t even try to haggle. I just gave what they were asking. After getting it home and going through it, I found it had the dispoz-a-blade system installed in it.

Does anyone have experience with these? Are they as easy to change knives as they claim? I was originally planning on buying a Byrd head and installing it, but thinking I might hold off now.

2 replies so far

View patron's profile


13600 posts in 3310 days

#1 posted 02-09-2015 02:51 AM

i got those blades for my grizzly 20” planer
that was before the byrd shelix was happening

they sure are easier to deal with than the straight knives
as they are factory sharpened both sides
unlike some sharpening services that can really mess up knives
with dips and tapers or hills on them
they almost always take off more than needed too
so the blades don’t last as long as they should

the dispoz-blade comes with some little spacer magnets
(like pencil erasure size)
they drop into the bottom of the gib ways
(a drop of 5 min. glue is good to hold them too
and the registered blade holder takes the blades
and just drops back in to the ways
the blades can be set to one side or the other
to compensate for nicks
then reverse to a new sharp edge

the cost of replacement blades is very attractive
if you already have the system
i would like to get the shelix someday (i think)
but at $459 (then the bearings extra)
it is still to far for me to do yet

i have a delta dj20 8” jointer too
and will probably get the dispoz-a-blades for it too

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

View unbob's profile


808 posts in 1872 days

#2 posted 02-09-2015 02:09 PM

I have a planer that came with dispozablades. The old 16” Powermatic in my avatar. I found they don’t exactly drop in as advertised. That is if you want to get them as close as a solid blade somewhere around .002” for even height. Just have to fiddle them in a little. Over all they work good.
For the most part looking at cost of re-grinding standard blades and or the life of a standard blade, the dispozablades seem to be reasonable price wise.
Performance, they are sharp and cut well. However they are thin, they can distort under heavy cutting, making the blade go in a little lumpy when using the second side.
I found they can be touched up with hand stones in the cutterhead to extend the life of each edge.
The photo above, how thin the blade is can be seen, the dark strip at left is the blade holder.

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