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Shaper--how far can I reduce a cutters bore?

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Forum topic by SirIrb posted 03-27-2015 03:56 PM 466 views 0 times favorited 2 replies Add to Favorites Watch
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SirIrb

1239 posts in 696 days


03-27-2015 03:56 PM

I am looking at a 1/2” shaper. If I have 3/4 bore cutters I feel it is safe to use reducers and spin them. How far would you go? 1” and reduce it to 1/2? I have gone 1.25 to 1 before and 1.125 (old machine) to 1”. Or is your greatest limiting factor cutter weight?

I really hate buying a 1/2 machine but the price is good.

-- Don't blame me, I voted for no one.


2 replies so far

View Bluepine38's profile

Bluepine38

3341 posts in 2551 days


#1 posted 03-27-2015 04:42 PM

I am not an expert, I bought a 1/2” shaper for $50 and rebuilt it for home hobby shop use, Grizzly sells the
bushings and I have no problem using 3/4” cutters. I have a friend that has two 1” shapers with power
feeders, if you want to do anything more than small hobby shop work, do not buy the 1/2” shaper, if you
have used the larger shapers, you know the limits of the small one and are going to have to answer your
own question on whether or not it can work for you.

-- As ever, Gus-the 77 yr young apprentice carpenter

View Oughtsix's profile

Oughtsix

42 posts in 641 days


#2 posted 03-29-2015 03:57 AM

It is not the diameter of the cutters bore you need to worry about it is the outside diameter of the cutter that you need to worry about. I wouldn’t want a cutter with an outside diameter of more than a couple inches on a 1/2” spindle shaper regardless of the bore diameter of the cutter.

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