Core Drill. Anyone Used One

As are these,although they don't seem to have a 50mm[bigsad]

We generally use the 80mm

RICD40LD 40MM SDS Core Drill Light Weight | Drill Bits - TradeTools | Huge Range, Great Service

Arh, they are all kids toys that you are using! Here is a "proper coring bit":[bigsmile]


pdc core bits are made with polycrystalline diamond compact cutters on matrix

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I'll see your little bits, OF and raise you a mole. [biggrin]

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Originally Posted by V8Ian

I'll see your little bits, OF and raise you a mole. [biggrin]

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Ah, but with mine you can sit in the air con on the surface, and just pull it up when you have gone far enough! [bigsmile]

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I'll see your little bits, OF and raise you a mole

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Looks large enough to get a 16mm pipe through 58i. Not to mention a Railway Coach.[smilebigeye]

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Originally Posted by V8Ian

I'll see your little bits, OF and raise you a mole. [biggrin]

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That looks like the one they used to build the Cem7 tunnel.[bighmmm]

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Originally Posted by W&KO

So are these

Concrete Drilling Equipment | Smart Diamond Tools

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On a serious note, please do NOT use one of those back handled drills for anything other than soft wood. Half a turn when, not IF, they jam and you will have a broken wrist.

I core drill regularly into concrete up to 150mm dia.
For glass glass pool fencing spigots and aluminium posts etc.
Cut with water. Drill plumb but wiggle the drill a bit every now and then so the bit or divot will come out of drill easily.
Reo no problem, feels like a rumble but keep speed up and lots of water.
Tip: once the divot is loose in hole, use bbq tongs to get it out!

MJS

https://uploads.tapatalk-cdn.com/201...4b6030b83d.jpg

Forgot to say: as per centering the drill, we use a timber template with a hole the same size as core drill bit just to get it started.
I think crowds like BE Hire, hire both bits and drills.

MJS

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Originally Posted by Old Farang

On a serious note, please do NOT use one of those back handled drills for anything other than soft wood. Half a turn when, not IF, they jam and you will have a broken wrist.

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We had one of those, when I was an apprentice. We made up a short length of pipe with a chain welded to it. The chain had a hook that we would anchor to somewhere convenient and pass the pipe through the handle.