Drilling a 25mm hole in PVC pipe

[NigelBirch]

What drill bit would the panel recommend?

kr

Nigel

 

[Even Chance]

A 25mm dia hole saw would be best.

 

[PetiteFleur]

Use a Hole saw which should work OK.

 

[30boat]

Holesaw

 

[OLLIE45]

Step cutter for me !!
But that's because we got them up to 30mm dia at work.
Hole saw is the economy option if you got to buy your own.

 

[White Horse]

25mm Hole

Bit of an expensive way of doing it for one hole . What about a Dremel . With a steady hand it should be easy enough .

 

[Amulet]

Step cutter for me !!
But that's because we got them up to 30mm dia at work.
Hole saw is the economy option if you got to buy your own.

Agreed. I just did a similar job with one of these and it was astoundingly neat.
I think the pilot drill in a hole saw will be badly supported by the thin wall and that it'll rattle around and make a mess.

 

[VicMallows]

How big is the pipe?

Isn't there a problem in that a step cutter is quite likely to be too long before it gets to the 25mm step? I assume OP only wants a hole on one side of the pipe.
Even with a hole saw it may be necessary to reduce the protrusion of the pilot drill to a minimum.

Vic

 

[30boat]

Isn't there a problem in that a step cutter is quite likely to be too long before it gets to the 25mm step? I assume OP only wants a hole on one side of the pipe.
Even with a hole saw it may be necessary to reduce the protrusion of the pilot drill to a minimum.

Vic

The hole can be started with the pilot drill until the saw bites.Then the drill is removed and the saw alone used to finish the hole.

 

[VicMallows]

The hole can be started with the pilot drill until the saw bites.Then the drill is removed and the saw alone used to finish the hole.

Agree. I was referring to the use of a STEP-CUTTER.

Vic

 

[Ru88ell]

Bit of an expensive way of doing it for one hole . What about a Dremel . With a steady hand it should be easy enough .

Also expensive if you don't have a Dremel.

 

[maxi77]

A lot depends on the size of the pipe, but my gut reaction would be to go for a hole saw in a drill press with the pipe clamped on the table. A step drill may also do the job but even though I have both I would stick with the hole saw.

 

[agurney]

A hole saw with a piece of dowel or old broom handle inside the pipe so the pilot drill has something to bite on all the way through.

 

[NigelBirch]

Report Back

Well I can confirm that the hole saw worked a treat! I tried it on a test piece and didn't even dowel inside. Thanks for all the help.