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Many times I used a chisel to cut off a hard-to-reach piece of lumber, I was wishing I had an adequate blade for my 4.5" grinder, as I don't own an oscillating tool. Why is it hard to find? Is it because they would be dangerous?

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The other big question is if your grinder accepts the flat type or the curved type – Steven Jan 3 '13 at 22:39
up vote 7 down vote accepted

They are made, they look like mini chainsaws and are commonly used for carving bowls.

Lancelot and Discs

A common brand for these blades is Lancelot

You can also get smaller saw blades in the 4.5" form factor. I suggest you go to a saw store or woodworking shop. Here is a product on Amazon:


mini saw blade

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why would anyone call their product Bad Blade??? – amphibient Jan 4 '13 at 17:44
The "bad blade" looks like an amputation waiting to happen. It's a circular saw blade but spinning at 10,000 RPM and with none of the characteristics of a circular saw that help keep it safe (retractable guard, a shoe to keep the blade aligned vertically). You couldn't pay me enough to use one of these blades in a grinder. – Mike Powell Apr 16 '13 at 4:09

The primary reason is grinders typically spin at 10,000 rpm. Wood cutting saws typically spin in the 3500 to 4000 rpm. If you spun a typical circular saw blade at 10,000 rpm it would come apart. As @Matthew PK has shown they make wheels for working wood with a grinder but they are not the typical toothed blades.

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RPM is a good point, but then again biscuit joiners spin at 10K RPM as well, and they've got a similarly sized blade. 7-14" blades have a much higher tip speed (proportional to radius), and therefore much higher internal forces at the same RPM. – Doresoom Jul 10 '15 at 19:44

I got a wood blade to fit my angle grinder out of a old biscuit jointer My advice is be very careful ,It kicks back something terrible We call them widow makers here in Australia

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That sounds horribly unsafe. Please tell me you at least use a guard with it! – Doresoom Jul 10 '15 at 19:45

I have an old Makita mini grinder that my dad out fitted with a 5" wood cutting blade from a mini circular saw. Unfortunately it has no guard and no handle. We use it for hard to reach areas that a regular circ saw or reciprocating saw won't reach. But my dad and I have nick named it the "killer" because it is the scariest tool I've ever used. if you're making a deep cut in wood and it catches because you twisted the blade, it kicks out uncontrollably. I agree with the guy from Down Under, a mini grinder with a wood cutting blade is recipe for disaster. That's the most logical reason why they don't make a wood cutting blade for a mini grinder, due to the high speed of the blade.

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I was ready to buy a wood blade for my grinder, I sometimes see good pieces of lumber in garbage bins here in NY and often would like a cordless tool to make a quick cut just in case the piece of wood I encounter is too long to fit in my corolla and the only cordless cutting tool I have is a grinder, however after reading the posts and getting an understanding of the danger of using such a blade on a grinder, I changed my mind. I don't have a lot of experience in this field but maybe just to do a quick cut on wood left in the trash maybe the standard grinder blade will do

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A small handsaw generally works nicely for this application... – gbronner Jan 4 at 22:07
Or a cordless reciprocating saw would work good too. – Michael Karas May 19 at 3:32

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