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Forum topic by ChrisJ posted 01-04-2012 08:34 PM 1018 views 0 times favorited 5 replies Add to Favorites Watch
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55 posts in 3056 days

01-04-2012 08:34 PM

Topic tags/keywords: power tools blade chop saw table saw replacement parts

I’m not sure I’ve used either of these power tools enough to replace the blades yet, but for machines like a portable table saw and a chop saw, how do you know when it’s time to replace the blades? Both still cut fine with little to no chip-out, especially when using a sacrificial fence on the chop saw. Any help with this would be appreciated!

5 replies so far

View ChunkyC's profile


856 posts in 3491 days

#1 posted 01-04-2012 08:47 PM

Cut quality is probably this first thing that I notice. Second is how much force does it take to push through the wood. If your cut quality is fine and your not having to push “extra” to get through the wood, then you’re probably ok.

Also if your using the “stock” blades, the time to replace those is before you unbox them. I have yet to see a blade that comes with a tool be worth much. There are exceptions of course, like my biscuit jointer, but replace the stock blade on a TS and Mitre Saw.

-- Chunk's Workshop pictures:

View HamS's profile


1833 posts in 2626 days

#2 posted 01-04-2012 08:48 PM

It depends on the quality of your blades, what you are cutting and what kind of finish you demand from the saw. My chop saw is three years old, has never had the blade changed or sharpened and it cuts fine for what I use it for. Mostly recently cutting firewood to stove lengths and rough cutting longer boards to close to project length. I have used my table saw for19 years and have bought three blades in that time. I sharpen them about every year. One is for crappy wood because I do a lot of stage work and we reuse wood all the time. It only takes once to hit a broken off drywall screw with a 70$ blade and I relearned all the profanity I thought I had forgotten from when I was a First Sergeant. (Actually, as a First Sergeant I found that speaking quietly and directly was more attention getting than the bluster but… ) I suggest you keep a ‘good’ blade for when you want especially fine cuts and an every day blade for the rest of the time. I have discovered that blades work better when they do one task. Use a rip blade for ripping and a cross cut for cross cutting. The combination is OK, but the purpose designed blade will do its job better.

Dirty wood is hard on blades so brush off your wood before you cut it.

-- Haming it up in the 'bash.

View a1Jim's profile


117417 posts in 3814 days

#3 posted 01-04-2012 08:56 PM

Like the others said. If your not getting a clean cut or burns or find it hard to cut through your stock. All said and done unless you have a very cheep blade it’s cost less to have a blade sharpened than replace it. Another cause for a blade not cutting well is that it’s dirty and needs the pitch removed, after cleaning they will often cut like new.

-- wood crafting & woodworking classes

View crank49's profile


4032 posts in 3208 days

#4 posted 01-04-2012 09:10 PM

I have had my miter saw, a 10” compound miter Delta, since the late 1990s.
Always used the stock blade; which was not even carbide tipped.
I recently was building a small bench to mount my lathe on and wanted nicer cuts without tearout so I put a 90 tooth Freud blade on my old saw.
WOW! That made a huge difference.
And my project went together nicer and with tighter joints than anything I have ever built.

Somewhat related comment.
I see several post on here where people refer to a miter/chop saw as a tool to whack boards close to length.
I don’t understand this. My saw, especially now with the new blade, makes the final finish cut much better than any other way I know to cut things.
I have always considered the workpieces coming from the miter saw to have the finish cut.
Am I missing something here?

View ChrisJ's profile


55 posts in 3056 days

#5 posted 01-10-2012 04:39 AM

Thanks for the input, everyone!

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