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Old 12-15-2011, 01:45 PM   #1
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wood cutting 4-1/2" grinder blades


i am curious why i never see 4-1/2" grinder blades for cutting wood in hard-to-reach places. people use things like Fein multitool but i think using a grinder with a proper blade, which seems unavailable in shops, would be better.

anyway, i am trying to cut some old flooring really close to the edge with a wall but i can't use sawzall cause there is a joist under. i would like to cut it alongside the joist to half the joist's width so there is half of the joist for support for the old floor on which the wall sits and also half on the other side for the new floor. if there was no wall, i could do it with a circular saw but the wall makes it impossible to reach.

why in the world do they not make wood cutting blades for 4-1/2" grinders?

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Old 12-15-2011, 01:49 PM   #2
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wood cutting 4-1/2" grinder blades


Quote:
Originally Posted by amakarevic
i am curious why i never see 4-1/2" grinder blades for cutting wood in hard-to-reach places. people use things like Fein multitool but i think using a grinder with a proper blade, which seems unavailable in shops, would be better.

anyway, i am trying to cut some old flooring really close to the edge with a wall but i can't use sawzall cause there is a joist under. i would like to cut it alongside the joist to half the joist's width so there is half of the joist for support for the old floor on which the wall sits and also half on the other side for the new floor. if there was no wall, i could do it with a circular saw but the wall makes it impossible to reach.

why in the world do they not make wood cutting blades for 4-1/2" grinders?
Can't you control the blade depth and not cut the joists?

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Old 12-15-2011, 02:05 PM   #3
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wood cutting 4-1/2" grinder blades


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Can't you control the blade depth and not cut the joists?
TOO CLOSE TO THE WALL !! the circular saw is too wide on either side to get withing like an inch of the wall.

proximity to the wall -> can't use the circular saw

directly above the joist -> can't use the sawzall
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Old 12-15-2011, 02:06 PM   #4
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wood cutting 4-1/2" grinder blades


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why in the world do they not make wood cutting blades for 4-1/2" grinders?
Much much too dangerous.
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Old 12-15-2011, 02:11 PM   #5
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wood cutting 4-1/2" grinder blades


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Originally Posted by amakarevic View Post
TOO CLOSE TO THE WALL !! the circular saw is too wide on either side to get withing like an inch of the wall.

proximity to the wall -> can't use the circular saw

directly above the joist -> can't use the sawzall
You can too use a saws-all. Lay the tool flat.
(And an experienced carpenter could use a skill-saw. You don't have to have the table flat on the surface.
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Old 12-15-2011, 04:57 PM   #6
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wood cutting 4-1/2" grinder blades


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Much much too dangerous.
why??
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Old 12-15-2011, 05:01 PM   #7
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wood cutting 4-1/2" grinder blades


At the RPM of an angle grinder, coupled with the design of the standard guard it has, if it got away from you, it would slice the crap out of you and do so instantly.

I've been hit while wearing gloves a few times while doing bodywork on Jeeps over the years, on most occasions if it had been a sharp blade, I'd have lost digits and lots of blood.

I think the Dremel multi max tool would do this job, if I understand the description correctly. I got one as a gift a few years ago and I use it for the occasional odd assignment.

Last edited by oldhouseguy; 12-15-2011 at 05:06 PM.
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Old 12-15-2011, 05:14 PM   #8
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wood cutting 4-1/2" grinder blades


Quote:
why??
Because.
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Old 12-15-2011, 06:29 PM   #9
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wood cutting 4-1/2" grinder blades


you want to buy a toe kick saw
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Old 12-15-2011, 06:30 PM   #10
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wood cutting 4-1/2" grinder blades


Can you put gasoline on it and burn it out?
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Old 12-15-2011, 06:33 PM   #11
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wood cutting 4-1/2" grinder blades


Harbor Freight Oscillating Tool = $30
Harbor Freight Oscillating Tool Blade = $5
Not cutting your digits off with a blade spinning at 8,000 rpm = priceless
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Old 12-15-2011, 06:34 PM   #12
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wood cutting 4-1/2" grinder blades


Circular saws run at around 3450 RPM and you have the benefit of the foot to cause friction on a surface and this helps to control snags and kickbacks.

A grinder typically runs at 10,000 to 15,000 RPM and has no foot or friction device. If that sucker kicks you could lose digits instantly and without warning.

You can however buy attachments for grinders that provide a foot and you can even get one with wheels but finding a wood-cutting saw blade to fit one may be a problem.

I can also tell you that "toe-kick" saws are also widowmakers.
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Old 12-15-2011, 06:35 PM   #13
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I can also tell you that "toe-kick" saws are also widowmakers.
And very expensive $250-400.
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Old 12-15-2011, 06:37 PM   #14
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wood cutting 4-1/2" grinder blades


http://www.craintools.com/pages/more.../795_more.html
This and an ossilating saw will cut out any floor with no wall damage.
It also will not let you cut to deep into the floor joist.
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Old 12-15-2011, 06:40 PM   #15
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wood cutting 4-1/2" grinder blades


Do any of the carpenters here think they could use a saws-all (which they already have) and just know that the op can't use one so all the suggestions to buy tools?
Just wondering...

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