hole saw for acrylic bath

[hoot]

hi
i have to drill tap holes in my new bath 32mm hole do i need a special hole saw or can i use a hss one i already own
thanks

 

[oz-plumber]

The only requirement is that it is sharp.
If going through acrylic I would probably use a 30mm hole saw.
32mm may end up being 35mm

 

[hoot]

hi
thanks for your quick reply will get a new 30mm when the shops reopen
most helpfull

 

[AWheating]

29mm is what i use, measure twice buy the bath once

 

[kozak1968]

Measure the diameter of the tap thread then use a hole cutter of the same size or slightly bigger. You can always file the hole out if required. The problem with older baths is the holes are large and you need to centralize the taps. If the holes are a snug fit then they wont move about in the holes. A lot of the new taps don't give a lot of coverage of the hole.

 

[hoot]

thanks all
for responding to my question will see what hole saw is available in local shop

 

[kris]

Yeh my holesaw is 29mm and I've bored many a bath , as long as its bigger than the threads of the tap then the chrome flanges give you plenty of coverage, I'd never go too big as risk water escaping down especially if shower above lol,

 

[plumben]

As long as the whole cutter is sharp and fit over the tap thread you'll be fine

 

[hoot]

hi
thanks for replys went to my local shop today all he had was 25mm or 32 mm bought both and tried them in a scrap piece of laminate.
25mm to small and 32 was bigger than the thread on tap but the base of tap and back nut covered the hole so should be ok

 

[Ermintrude]

Nice sharp one . Measure thrice and don't cry at all

 

[plumben]

Masking tape helps if you slip with the drill too

 

[PlumbBobBob]

drill a pilot hole first with 2-3mm drill the rest will be easy peasy then

 

[hoot]

will do thxs again