I'm trying to cut holes in some tough porcelain. I've borrowed a rotozip, but I've only got a massive bit for it, but it cuts it fine. If the rotozip manages it, will the porsadrill manage it? I don't know whether to try to get a rotozip bit in the right size or just get the porsadrill bits, because I've only got the rotozip until new year and I'm struggling to source the bit in that timescale. I've tried am Armeg bit and that only did two holes, so I'm a bit concerned about wasting any more money. Thanks.

It should fly through them but you must use a water feed or just keep the bit cooled with a wet sponge or the bits will burn out in no time. I havnt used the rotozip so I cant really advise but I should think it will be easier and give a cleaner finish with the posadrill.

I guess it should , I have a Rotozip and dont rate it at all. I cant speak highly enough of Porsadrills.

Thanks. Forgot to say I need to drill about 20 holes. The 365 website says a 4 pack should do 25 to 40 holes, is that about right in practice?

I find they are being conservative with their estimations. Use the sponge and water method and they last a long time.

porsadrills will do the job as long as you use water.

thank you

I use a cordless drill and keep it to a slow speed