Discuss 5" flue, what core size? in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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I have to fit a 5"horizontal vaillant flue today and wondered what size core bit to use. I normally use a 127mm for a 4" flue to give me the fall back to the boiler. But a 127mm might be a little tight. Any thoughts?
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so you just drill out straight and not at an angle then?
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i drill straight when i use a 5" bit for a 4" flue.
well i try to.
I've drilled at a slight angle with a 117mm core bit for a 4" flue. Normally strait with a 127mm core.
Drill Straight out for me, more accurate than drilling at a angle.
Yep 6"' done a few on BF fires of all things, you can hire the core cheap for the day as not worth buying for the odd occasions...
Yep the core is around £90-100 for a 6" bit. Iv never had to use one in 10 years. Don't want to pay that. Ill hire one.
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if you know any sparks they may have one for kitchen extract fans you can borrow. Saves buying or the hire of one for one hole.
Defo use a 6" core there couple of used one going on ebay at the mot you mite be able to bag one for a good price!!! id rather buy a used one and have it for next time then hire one and get your pants palled down
Brandon tool hire. £10 for the morning. 6" core bit. I doubt ill ever use a 6" again so not worth me buying it. Can't speak for others of course.
nice one iv only used brandon tool hire once and found them dear but needed the kit. I use hire station is best for me but used to use jewsons till my mate left and went and started with hilti:yes: Im not moaning lol
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