3/4 bsp tap holes

[adrianfs1]

Hi guys, never new that some baths come with no tap holes, can only find a 1600mm bath with no holes, anyone recommend a safe method and tool for drilling the required dia in a 2.5mm steel bath, advice much appreciated,cheers.

 

[ecowarm]

adrian I use one of these kits from DeWalt Dewalt DT8277QZ TCT Hole Saw Kit - 13 Piece | DeWALT Hole Saws | Powertools2u
Pricey but very good quality

 

[copperman111]

Adrian,

Most good holesaw kits designed to cut metal should do the job
Good look, make sure you mark it exactly before cutting

 

[adrianfs1]

so a 28mm core drill will do the job then, thanks for that guys.

 

[dontknowitall]

Tip, if you need one. Put masking tape around tap area (on bath) first. It helps prevent slipping and if you do, hopefully masking tape will protect the bath.

I don't bother with masking tape but I do the following:

I carefully drill a 2mm pilot hole.
Then I check my measurements again.
Then enlarge it to 3mm, then 4mm then 6mm.

Secondly, I use a sharp hole saw (with 6mm pilot drill bit) and drill slowly, just scoring a neat circle to begin with then start using pressure when it looks right.

Process takes a good 2-3 minutes per hole but better than rushing and making a good mess.

 

[moore]

adrian - the above from dontknow is great advice, - whilst following the above proceedure - hold tight & do not slip!!! - a scratch on one of those is not good.....all the best mate - moore