saw

   / saw #1  

daedong

Veteran Member
Joined
Jul 8, 2003
Messages
1,265
Location
South Australia
Bought a 9" rotary hacksaw blade (48 teeth) today to put in my circular saw . has anyone used them, are they good or bad, is there any special idiosyncrasies. cost $130 au.
 
   / saw #2  
They're available here too. I was given one as a sample at Fastenall (a tool company). I ended up giving it to a friend having to cut a bunch of one inch tubing. He said it worked well but didn't last as long as he thought a fifty dollar blade should.

It's interesting that a blade that looks like it's made for plywood with carbide teeth would be designed to cut steel from rebar to tubing.

DeWalt makes a fourteen inch chop saw that uses a steel blade to cut metal. Mueller Buildings sells and uses the product. They say it's economical compared to using the DeWalt chop saw and carburendum (sp) blades. The saw goes between four and five hundred dollars. Blades are a third of that.
 
   / saw #3  
I haven't seen or used those blades; sound too expensive for me, but yesterday morning I bought a 3' long half inch steel rod at Home Depot and found it interesting that the label or tag said "Made in the USA or China"; sounds like they weren't sure where it came from. /forums/images/graemlins/wink.gif /forums/images/graemlins/laugh.gif I don't know much about steel, but it sure was hard steel; 'bout wore out a little hacksaw blade in my Makita reciprocating saw cutting that rod to the length I needed.
 
   / saw #4  
I was given one as a sample

Just like a rock star, they lavish gifts on Harv cause he's cool- /forums/images/graemlins/cool.gif
 
   / saw #5  
As far as saws go for cutting steel or other metals, you might take a gander over at harbor frieght. We picked up a chop saw for unde $60.00 and a couple of wheels to go with it. It was made in China, no bells or whistles, but the thing cuts like there's no tomorrow. 3" I beam is no problem, neither is chromoly tubing in 1 5/8".

Cheap and easy, just leaves a heck of a mess. /forums/images/graemlins/cool.gif
 
   / saw #6  
Yeah, Chris, I've used chop saws and they're sure handy if you have very much to do, but since I very seldom have any metal cutting to do now, or space to keep many tools, I just make do with what I have. The only thing I was doing with that rod was repairing a weight lifting bench my grandson got from a garage sale.
 
   / saw #7  
Way to much money to pay for a consumable. DeWalt has a cheapy metal cutting blade that look like a disk with slots and no teeth that works pretty good.

I wouldn't pay > $100 for a circular saw hacksaw blade. Loose a couple teeth and its probably no more good. I would & have paid more than that for a wood blade but they don't tend to lose teeth and can be resharpened.

A blade for my metal cutting bandsaw is about $15, and chopsaw blades are even cheaper.
 
   / saw #8  
Those expensive deWalt saws are called cold cutting saws I think. They are usually for when cutting a thick section where abrasives don't work well. Most guys don't find them faster or cheaper.

The harbour freight saws have a history of burning up the motors. Some people I know of killed one every few months, just kept taking em back.

Milwalkee (spelling?) make some of the most reliable chop saws.

I wish I could get the old power hacksaw from school! That old monster was awsome, cheap blades (compared to bands) and nice cuts.

Ken
 
   / saw #9  
i hear ya slow, we just retired our old power hacksaw. 25 years in our shop, and it was bought, worn out and old. it's starting to get worn out agian, and needs some work, but we need larger capacity then the 6x6 hacksaw could do.. dad picked up an almost new 7x12 bandsaw for $375 at an auction ($1200 new).

now we've gotta decide if we wanna part with old betsy /forums/images/graemlins/tongue.gif
 
   / saw #11  
I'm not sure what the difference is VIN but DeWalt has made a completely different saw for the steel blade versus using the carberendum (sp) one. So you might find out that your blade won't work in your chop saw.

I have three chop saws. I hardly ever use any of them. The biggest reason is I rarely if ever do production work. And the sparks are not only dangerous but they're like cigarette smoke. They mess up everything they touch. /forums/images/graemlins/frown.gif Heck, in my old age I'm getting where I don't even like using grinding discs in my angle grinders if I can get away with using flap discs, again sparks.

What people don't keep in mind is those sparks are like acid on glass like in windshields etc. And they can destroy a paint job instantly. Another thing is the sparks land where they can be subjected to water and then you have rust stains. These can be a bear to remove from tile, concrete, auto paint, etc.

I had one job where the company doing my core drilling around a pool got to pay for an acid wash because they allowed some sawdust from rebar in the decking to get into the pool. It didn't show for a week or so and then there were these stains. /forums/images/graemlins/frown.gif /forums/images/graemlins/frown.gif

If it was all so simple then everyone would be doing it...... /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif
 
   / saw
  • Thread Starter
#12  
Harvey
My main motive in buying this disk is because

(1) I have had enough of breathing the crap from Carborundum disk.

(2) Carborundum disks make a hell of a mess in the shed.

(3) 9" carborundum disks are not cheap here in oz $3.75 bulk or $4.50 retail (roughly speaking)

I use the new disk this morning playing around. One word at this stage BRILLIANT cuts clean and so fffffffffffffffast /forums/images/graemlins/grin.gif
 
   / saw #13  
The building maintenance crew at work says you have to buy the new saw to run the 14" blade because it is designed to run at 1500 RPM which is about half what a chop saw runs. They claim it makes fast clean cuts with no sparks. The blade lasts 4 or 5 times longer than standard blades. The saws with blade cost five or six hundred. Replacement blades about $100.
 
   / saw #14  
I found the cheapy dewalts really useful for cutting bundles of steel studs (10 at a time). I cut about 1,000 of them on a blade and it was much faster than snips & easier on my paws.

I also cut the plate for my welding table.

Not the greatest, but it worked. Wait 'till I get my plasma cutter ...
 
   / saw #15  
</font><font color="blue" class="small">( Bought a 9" rotary hacksaw blade (48 teeth) today to put in my circular saw . has anyone used them, are they good or bad, is there any special idiosyncrasies. cost $130 au. )</font>

Sounds like a cold saw, which is meant to run at low RPM, low feed rate, and used with coolant. Should last a long time if treated right. If you see sparks or blue chips, shut it down. It's self-destructing.
 
   / saw
  • Thread Starter
#16  
No coolant required and they run at a range of speeds by there website
"The ROTARY HACKSAW from Austsaw delivers a precision saw blade for every-day use in angle grinders, power saws, drop saws & even radial arm saws."

I cut a few pieces of steel with it yesterday, some 2"x2"x 3/8 angle iron, it cut this as easy as cutting a piece of pine 2"x3" with a circular saw. It cuts 3 times faster than a carborundum blade in an angle grinder, and very little vibration.
I will keep folks posted with an ongoing report but so far, GREAT
 
   / saw #17  
can u attach some pics??? /forums/images/graemlins/confused.gif /forums/images/graemlins/confused.gif
 
   / saw
  • Thread Starter
#18  
I am a $130 poorer
My blade is toothless
My excitement has gone and i just want to sit in the corner and cry. /forums/images/graemlins/frown.gif /forums/images/graemlins/frown.gif /forums/images/graemlins/frown.gif /forums/images/graemlins/frown.gif /forums/images/graemlins/blush.gif
I guess i am a little richer in some way for the experience.
 
   / saw #19  
Poorer and wiser, Vin's poorer, we're wiser.

But appreciative!!!!!!! /forums/images/graemlins/grin.gif

How many fiber blades would you have used to the same amount of work?

What do you think the cost per cut was if you can guess?

And was it worth the extra expense to be sparkless and dust free?

After all, for some, sparkless and dust free is worth almost any price. If you were one of those would you consider the steel blade a good investment?

Sorry for all the questions. But who else do we know that has the answers but our wonder from down under?
 
   / saw
  • Thread Starter
#20  
<font color="blue"> How many fiber blades would you have used to the same amount of work? </font>
Probably 5

<font color="blue"> What do you think the cost per cut was if you can guess. </font>
Lots



<font color="blue"> And was it worth the extra expense to be sparkless and dust free? </font>
No

<font color="blue"> After all, for some, sparkless and dust free is worth almost any price. If you were one of those would you consider the steel blade a good investment?
</font>
I think had i put it in a cut off saw it may have been a good investment but to use it in an angle grinder or circular saw they simply will not last as lateral twist becomes the enemy.(i hope you get my drift).
one other point, we all know how dangerous any cut off wheel can be. Well i would put these at the top of the list, the shaving that fly of are so dangerous, glasses alone are not enough a full face shield is required. I am still pulling shavings from my cheeks
 

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