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Core drills

View the thread, titled "Core drills" which is posted in Plumbing Tools on UK Plumbers Forums.

Riley

Riley

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Alright my plumbers from another mother

Know it’s been asked before but what core drills are people using. I need to bite the bullet.
 
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Fair enough. I suppose it depends what former you have. To be fair mine was an impey, which you screw down. So I horsed out plenty of material then set it on sand cement- screwing down into sub base the following day .
Membrane down and good to go, mind you I cheated by advising custard so I could tile in 2” squares which follow the former nice and easy with no cuts!
Stop waffling me, waaaaay off topic.
 
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Ben-gee said:
Fair enough. I suppose it depends what former you have. To be fair mine was an impey, which you screw down. So I horsed out plenty of material then set it on sand cement- screwing down into sub base the following day .
Membrane down and good to go, mind you I cheated by advising custard so I could tile in 2” squares which follow the former nice and easy with no cuts!
Stop waffling me, waaaaay off topic.
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It was a rigid foam one. Nice when the tiles are small enough for no cutting. I always try and push the customer to a small tile in the wet area. I tell them it gives better grip under foot with the extra grout lines.
 
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Oooo the fibs we all tell to make our lives easier!
I agree, I had a punter asking me about nonslip treatment as they’d had a wet room done where the shower was basically 2 800x800 polished porcelain tiles split from the corners and was link an ice rink.
 
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Riley said:
Marcrist DDM1 core drill thoughts or reviews please lads
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I looked at this as a replacement to the Makita I have. It looks identical to the Milwaukee, even has the same case but is just a little less on the power front. I would imagine it is a pretty decent drill. We use the Marcrist core bits and dust extraction kit which both work well and make life a bit easier.
 
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Thanks buddy I was thinking the same and I found a really good deal on it so I’m thinking it should be ok. I don’t do site work so am usually only drilling flue and condense per install rather than kitchen and bathroom as well. I have a friend that’s gifted me two big hilti cores too, only used twice but they’re 4” and 6” so need a decent motor behind it
 
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Found a kit that comes with the extractor set for not much more £3-4 I think it worked out so I think it could be the winner
 
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Just to follow up chaps. Bought the Marcrist DDM1. Used it for the first time in anger today drilling some really nasty hard red brick. What a machine, if I said it was like knife through butter I wouldn’t be exaggerating. Flue and condense drilled in under 10 mins. To be honest it would’ve been quicker but it took a while to change cores. Can highly recommend and can honestly say I don’t know how I’ve survived with an SDS for so long. Effortless drilling!!!
 
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How were you with hard reds? I find they can sometimes clog the core and I have to keep cleaning the core on a scrap of concrete - but then the job is easy.

Learnt this the hard way, after burning out a core bit 🙁
 
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I have a Marcrist and was loving it until it broke in less than 2 years. Love the slow start and general feel. Wish I had registered it. Can’t find anyone local in MK that will fix it. Might go back to Makita or try the Metabo
 
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Have you had it apart and had a look, my corded Makita quita while back so i took it apart as nothing to loose.
It had a lot of overhead use and grit had fallen in the mechanism. Cleaned out, lubed up and to my constant surprise still going strong. Worth a try 👍
 
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