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Thread: core hole drilling
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13th February 2009, 08:14 PM #1Senior Member
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core hole drilling
I am in the market to buy some core hole tools. I am mainly interested in brick and concrete block walls and i believe this rothenberger www.rexcrystal.co.uk/item.php?itemsID=1066 dry core hole kit should suffice. I can get it for a good price so I think it will be the one. Apparently dry drilling is fine for non hardened concrete.
Does anyone know of a cordless drill which would suit? It recommends drills of minimum 850 watts, clutch, variable speed, capable of 3000rpm, non hammer.
I have a brand new Dewalt 18 volt rotary hammer drill which is quite powerful and hammer can be turned off but surprisingly it is only 300 watts/1100rpm!
The tool will be used for work so needs to be up to the task, however I don't fancy carrying one of those massive dedicated core hole drills around, particuarly since i can't bolt it to the clients brick wall like they do in industrial applications.
Any thought's greatly appreciated.
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13th February 2009 08:14 PM # ADSGoogle Adsense Advertisement
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13th February 2009, 09:01 PM #2
That links seems to be broken
Haven't heard of any cordless with that much speed or power. For this application I think the clutch they specify is not the type seen on cordless drill which is typically for driving screws to a certain torque. I suspect it is a clutch like on these tools:
http://www.metabo.com.au/Product-cat...fea4622.0.html
which prevent twist injury, and I don't know of any cordless with that type of clutch either. Does it need to be cordless?
Cheers
Michael
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16th February 2009, 06:29 PM #3Member
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I have a Milwalkee 28V cordless and have used it to drill 75mm core holes and it did it pretty easy. In saying that they were wet cores in concrete horizontally.
Stewy
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