Tungsten carbide circular saw blades

Lumen

I managed to kill my 235mm circular saw blade going through a load of wood with nails and screws in it.

That worked great until it didn't any more, and now the blade is useless. I assume it can be sharpened, though I doubt my skills and patience.

Anyway, I replaced the blade with a "Trend CraftPro TCT" blade which is "tungsten carbide tipped". It's not strictly a "multimaterial blade" but I've read that TC is much more resistant to blunting from nails.

So am I OK to just blast through the rest of the wood pile with merry abandon, or do I need to treat it nicely and attempt to remove all the screws and nails first?

Calahonda52

I wouldn't, The teeth will actually chip, I did this on a sheppach 60 tooth TCT and ruined it, 189 euro

colm_mcm

These are consumables now, we used to get circular saw blades re-tipped about 20 years ago, but these were bigger, more high-end blades.

the_pen_turner

of the 20 plus diferent saw blades I use there is only 6 worth sharpening. the fine blade for the chop saw, 3 good blades for the table saw and the 2 for the track saw. everything else isn't worth it . some of the blades it is cheaper to replace and others just not really worth it.

jack of all

the_pen_turner wrote: »

of the 20 plus diferent saw blades I use there is only 6 worth sharpening. the fine blade for the chop saw, 3 good blades for the table saw and the 2 for the track saw. everything else isn't worth it . some of the blades it is cheaper to replace and others just not really worth it.

It's a shame though, isn't? I know my father has circular saw blades that are 30+ years old, all have had some teeth replaced over the years, all been sharpened 2 or 3 times.

Stigura

Lumen wrote: »

I managed to kill my 235mm circular saw blade going through a load of wood with nails and screws in it. ..........
So am I OK to just blast through the rest of the wood pile with merry abandon, or do I need to treat it nicely and attempt to remove all the screws and nails first?

Lumen, I saw this a couple of days ago. But, I held off my response, in the hope that someone else may raise my point. No one has. So, with the best will in the world, I'll share my little story. It's from fifty years ago now. Things might have changed? I'm sure I'll be lavishly roasted, if so. What ever .....

Our Woodwork teacher had a Table Saw. I believe they run on the same principle as a hand held Circular? Blade spins away from ye? Cutting what's in front of it, from above? And this saw lived in a narrow space, between typical school fire doors. With thick, wired glass panels in them. Got the mental picture?

So, one day, we're all crowding the doorway behind the saw. Teacher turns round and tells us to GTFO! Then, he points out the bullet hole like point in the toughened glass!

Turns out, he'd been cutting a bit of wood and the blade had hit an un noticed knot! Bloody knot had shot out, propelled by the blade, and had (Miraculously) blasted past Mr Jefferies physical form. Slamming into the glass behind him. And doing that reinforced, toughened glass no good at all!

As Mr Jeffries said: " If there had been a boy standing there .... "

To this day, mate, I tend to stand to the left, when using my circular on wood. And you want to bring nails and screws into it?! :eek: