Blades for cutting concrete with cut off saw.
Blades for cutting concrete with cut off saw.
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Chris240

Original Poster:

17 posts

Hi all,

Found myself the proud new owner of a STIHL cut off saw with approx 100-120 linear metres of concrete to cut to 90mm depth (don't ask me why lol). Before I start on my endeavour, the topic of finding the right blade and understanding how many blades I'm going to get through doing this has come up. I seem to be able to find them anywhere from £10-£200 with lots in between. Does anyone have any experience here on which blades would be best and what sort of lifespan I can expect? Appreciate this is a bit of a niche one, cheers!

JoshSm

2,016 posts

54 months

Depends on the size and I assume dry cutting?

Last I bought was a fancy segmented Bosch Pro one, not cheap but has lasted ages with minimal wear while a cheap one managed one cut.

The expensive ones are usually going to last a *lot* longer, some of the cheap ones can be like cheese.

Does depend on how abrasive what you're cutting is.

Chris240

Original Poster:

17 posts

JoshSm said:
Depends on the size and I assume dry cutting?

Last I bought was a fancy segmented Bosch Pro one, not cheap but has lasted ages with minimal wear while a cheap one managed one cut.

The expensive ones are usually going to last a *lot* longer, some of the cheap ones can be like cheese.

Does depend on how abrasive what you're cutting is.
It's a 300mm saw (TS410), and it'll be all wet cutting about 90 ish mm deep. What you're saying definitely stacks up with what I've been reading, I'll have to take a look at the Bosch one. Would you have any rough idea of how many metres I'd get out of a good quality blade like the Bosch one you mention?

Chris240

Original Poster:

17 posts

Chris240 said:
JoshSm said:
Depends on the size and I assume dry cutting?

Last I bought was a fancy segmented Bosch Pro one, not cheap but has lasted ages with minimal wear while a cheap one managed one cut.

The expensive ones are usually going to last a *lot* longer, some of the cheap ones can be like cheese.

Does depend on how abrasive what you're cutting is.
It's a 300mm saw (TS410), and it'll be all wet cutting about 90 ish mm deep. What you're saying definitely stacks up with what I've been reading, I'll have to take a look at the Bosch one. Would you have any rough idea of how many metres I'd get out of a good quality blade like the Bosch one you mention? I know that's probably a very difficult one to judge. Concrete is probably C30 and been down around 70 years.

Magooagain

11,892 posts

187 months

Couple of blades should see you right. The difference may be steel reinforcing!

Chris240

Original Poster:

17 posts

Magooagain said:
Couple of blades should see you right. The difference may be steel reinforcing!
Luckily there's no rebar in it. Only getting through a couple of blades would be a result. Do you have any recommendations aside from the one made above?

JoshSm

2,016 posts

54 months

Bosch PRO 2608602656 or 2608602657 is the sort of thing I was thinking of, seems to be a lot of retail price variation given the only difference is the bore size.


Magooagain

11,892 posts

187 months

Chris240 said:
Magooagain said:
Couple of blades should see you right. The difference may be steel reinforcing!
Luckily there's no rebar in it. Only getting through a couple of blades would be a result. Do you have any recommendations aside from the one made above?
I’ve had good results with Hilti products.

wolfracesonic

8,406 posts

144 months

Yesterday (07:09)
quotequote all
Can’t help with blade recommendation but hiring a cart to put the saw in would save your back I would have thought. What are you doing, installing linear drains?

119

13,959 posts

53 months

Yesterday (07:17)
quotequote all
As above, your back will be your best friend if you put it in a cart.

I had good results from Macrist blades but i think they are quite expensive.

Well, they used to be!

Chris240

Original Poster:

17 posts

Yesterday (14:37)
quotequote all
wolfracesonic said:
Can t help with blade recommendation but hiring a cart to put the saw in would save your back I would have thought. What are you doing, installing linear drains?
No, it's for a barn built in the 60's out of lovely stone, someone then had the bright idea to pour a concrete path/narrow road around it and not leave a gap between that and the building, since then the concrete has sunk in places and is generally looking completely dilapidated. Had a go with a breaker but even being very careful it started to damage the mortar and stone. Builder suggested going round the edge very close with a cut off saw and then breaking the bulk of it out and doing the last inch or so with something a little more subtle.