I have a Royobi EWS1150RS circular saw that came with a 170mm 12 tooth blade.

I need to cut down a chipboard kitchen carcass - soft material but needs a clean cut on one side (other side will be covered by end panels, etc).

My instinct is "12 teeth !", now go and look for another finer tooth blade (say 40 or more).

The included blade is this:
https://www.amazon.co.uk/Ryobi-CSB17.../dp/B00CMPWPL8

It says good for cutting laminate chipboard, etc.
So will this blade be OK ?
Are my insticts about number of teeth wrong due to the speed ?

Simon.

On Sunday, 25 August 2019 13:03:57 UTC+1, sm_jamieson wrote:
I have a Royobi EWS1150RS circular saw that came with a 170mm 12 tooth blade.

I need to cut down a chipboard kitchen carcass - soft material but needs a clean cut on one side (other side will be covered by end panels, etc).

My instinct is "12 teeth !", now go and look for another finer tooth blade (say 40 or more).

The included blade is this:
https://www.amazon.co.uk/Ryobi-CSB17.../dp/B00CMPWPL8

It says good for cutting laminate chipboard, etc.
So will this blade be OK ?
Are my insticts about number of teeth wrong due to the speed ?

Simon.

Never used one with so few teeth! I got a 48-tooth 254mm blade with my mitre saw. Just bought an 80-tooth one so as to get even better cuts. I hope. Not yet tried it - and I tend to cut real timber (and ply, etc.) rather than laminate.

On 25/08/2019 13:08, polygonum_on_google wrote:
I need to cut down a chipboard kitchen carcass - soft material but needs a clean cut on one side (other side will be covered by end panels, etc).

My instinct is "12 teeth !", now go and look for another finer tooth blade (say 40 or more).

This any help:

https://www.finehomebuilding.com/200...t-tooth-counts

On Sunday, August 25, 2019 at 1:14:27 PM UTC+1, ss wrote:
On 25/08/2019 13:08, polygonum_on_google wrote:
I need to cut down a chipboard kitchen carcass - soft material but needs a clean cut on one side (other side will be covered by end panels, etc).

My instinct is "12 teeth !", now go and look for another finer tooth blade (say 40 or more).

This any help:

https://www.finehomebuilding.com/200...t-tooth-counts

Well thats what I would have thought !

170mm diameter seems to be rare. Perhaps Ryobi is not so good for circular saws.

Anyway, 165mm is common, and only could affect cut depth by 2.5mm. Any problem using something like this:
https://www.screwfix.com/p/freud-tct...20mm-40t/5505j

sm_jamieson wrote:
I have a Royobi EWS1150RS circular saw that came with a 170mm 12 tooth blade.

I need to cut down a chipboard kitchen carcass - soft material but needs
a clean cut on one side (other side will be covered by end panels, etc).

My instinct is "12 teeth !", now go and look for another finer tooth
blade (say 40 or more).

The included blade is this:
https://www.amazon.co.uk/Ryobi-CSB17.../dp/B00CMPWPL8

It says good for cutting laminate chipboard, etc.
So will this blade be OK ?
Are my insticts about number of teeth wrong due to the speed ?

Simon.


12 teeth does seem rather light but I must admit Ive never counted the
teeth on one.



Having said that, Ive found the secret to cutting faced chipboard is a
€˜fence to steady the saw and cutting face side down. You need to measure
carefully to ensure the fence is positioned so the cut is in the right
position, allowing for the blade cutting width etc. Cut steadily and not
too fast. Generally both sides come out good with no chips but the face
side is (almost) always perfect.

I always use a TCT blade.

On 25/08/2019 13:03, sm_jamieson wrote:

I have a Royobi EWS1150RS circular saw that came with a 170mm 12
tooth blade.

Its a common style of blade tom come with a saw of that type.

I need to cut down a chipboard kitchen carcass - soft material but
needs a clean cut on one side (other side will be covered by end
panels, etc).

My instinct is "12 teeth !", now go and look for another finer tooth
blade (say 40 or more).

The included blade is this:
https://www.amazon.co.uk/Ryobi-CSB17.../dp/B00CMPWPL8

It says good for cutting laminate chipboard, etc. So will this blade
be OK ? Are my insticts about number of teeth wrong due to the speed
?

Depends on what you mean by ok! Yes it will cut pretty much anything
quickly, and will rip and crosscut (hence why you get one with the saw),
but that does not mean it will make a neat job of it.

More teeth will give a slower smoother cut with less chip out.

Having said that there are things you can do you get a decent cut from
even fairly coarse toothed blades:

Cut from the underside (chip out tends to happen where the teeth exit
the wood).

Use a sawboard [1] the board protects the top surface of the side it
covers.

Do a scoring cut [2]


[1] http://wiki.diyfaq.org.uk/index.php/Sawboard

[2] http://wiki.diyfaq.org.uk/index.php/...saw_techniques



--
Cheers,

John.

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On Sunday, 25 August 2019 13:03:57 UTC+1, sm_jamieson wrote:

I have a Royobi EWS1150RS circular saw that came with a 170mm 12 tooth blade.

I need to cut down a chipboard kitchen carcass - soft material but needs a clean cut on one side (other side will be covered by end panels, etc).

My instinct is "12 teeth !", now go and look for another finer tooth blade (say 40 or more).

+1. Coarse blades cut faster but rough.
Triple chip blades give a better finish per number of teeth.


NT

On Sunday, August 25, 2019 at 1:25:00 PM UTC+1, sm_jamieson wrote:
On Sunday, August 25, 2019 at 1:14:27 PM UTC+1, ss wrote:
On 25/08/2019 13:08, polygonum_on_google wrote:
I need to cut down a chipboard kitchen carcass - soft material but needs a clean cut on one side (other side will be covered by end panels, etc)..

My instinct is "12 teeth !", now go and look for another finer tooth blade (say 40 or more).

This any help:

https://www.finehomebuilding.com/200...t-tooth-counts

Well thats what I would have thought !

170mm diameter seems to be rare. Perhaps Ryobi is not so good for circular saws.

Anyway, 165mm is common, and only could affect cut depth by 2.5mm. Any problem using something like this:
https://www.screwfix.com/p/freud-tct...20mm-40t/5505j

Well just for feedback, this blade is doing a good job on kitchen worktop (sawn face down). Just remember to check the direction of rotation - this blade needed fitting with the label side into the saw. Although you would stupid not to notice if the teeth were facing the wrong way when you spun the thing up !

Simon.