On Tuesday, 14 November 2017 09:41:24 UTC, Bert Coules wrote:
John Rumm wrote:

If you have a similar plank, then its fairly "safe", since you can use
that to set the depth of cut on the saw. That way you can make sure you go
no deeper than the plank.

I'd have preferred it if you hadn't chucked in that "fairly"! Yes, this
does seem the way to do it, except that my only circular saw is a massive
and unwieldy beast of a thing and not exactly a precision instrument any
more, so I'm thinking of acquiring a small plunge saw purely for this job.
There seem to be several reasonable-looking budget models around, such as
the 18V cordless Bakita:

https://www.amazon.co.uk/Cordless-Li...i+circular+saw

(Short version: https://tinyurl.com/ya3cmtj8 )

I realise of course that you get what you pay for, but for an immediate
one-off task (and only the very occasional job (if that) in the future) it
seems OK to me to go for something like that. As long as the depth gauge is
reliable...

You can have an ok real circular saw for that much, Aldi or machine mart.


NT