On 6/7/18 5:12 PM, wrote:
On Thu, 07 Jun 2018 20:59:22 GMT, Puckdropper
wrote:

I need to make 8 rather large holes, about 3-3.5" in pool steps that have
already been installed. They're 2x12 pressure treated boards. The
instructions for the solar lights suggest using a hole saw, but I don't
have one that big and only need it for this project.
I've seen expandable spade bits for something like $10-15 at Menards. (It's
been a while) Has anyone used these things? Will they work without too
much trouble?
My other option would be a jigsaw or router, but I don't have a lot of
space to manuever.
Puckdropper


Hole saws go that big - but you need the bigger mandrel ..

http://www.leevalley.com/en/wood/pag...at=1,180,42316

... starts to get pricey at LV maybe similar at amazon or HF
for cheap ? dunno.

.. or the cheapest way always - borrow one ! :-)

John T.


Yes, hole saw. Easy to use and works amazingly well.
A tip is to drill the pilot hole first (so you can accurately locate it,
then drill a 1/2" or so just inside the hole cut line. This gives the
sawdust a way to escape the kerf so you don't burn up the hole saw.

-BR