Anyone got a diamond core drill aprox 210mm??
Discussion
I need a cat flap put on the side of a building, I need someone to make a hole through brick and /or breeze block. I would go and buy a diamond core and do it myself, but £600 or £700 just for the core seems a lot to pay for one hole. I am willing to pay generously if someone can do this for me.
Cheers.
Cheers.
Try talking to Clive at Tonbridge Diamond Cutting
http://www.tonbridgediamondcutting.co.uk
He may be able to help you out, he owns TDC and he's a proper petrol head being the owner of a very nice Roger Clark Motorsport built Impreza P1
http://www.tonbridgediamondcutting.co.uk
He may be able to help you out, he owns TDC and he's a proper petrol head being the owner of a very nice Roger Clark Motorsport built Impreza P1
I put a cat flap in for the girlfriends two cats. Doors weren't an option, windows a pain, so I drilled a hole in the wall. The hole required wasn't a circle. More like a square crossed with a circle. I have a core drill and my biggest core is a 5" core, but due to the hole needing to be bigger and the shape no uniform, I gave up on the core drilling route.
The internal wall was plasterboard dot and dabbed onto celcon blocks. A few starter holes and a pad saw saw to the light weight block.
I then drilled a few holes through the new hole I'd cut drilling into the outer concrete block wall. I marked the top two corners and a few other points to get the rough shape.
Wizz around to the outside and draw the rough shape left. Chain drill the shape and knock it out. You've a bit of leeway which the cat flap can cover over. I had to knock up an ickle bit of cement to replace a bit of blown render, but none of the drilled holes are no show.
To drill a 8" core will take some drill. I've a dedicated core drill. I've used SDS drills in the past gifted by employers to drill cores <5" and it knackers the drill. The clutch isn't up to the job. Then the cost of the core which isn't a popular size. All add's up.
Answer, chain drill it. t
t it with a hammer. Chisel any rough bits. Fit flap.
The internal wall was plasterboard dot and dabbed onto celcon blocks. A few starter holes and a pad saw saw to the light weight block.
I then drilled a few holes through the new hole I'd cut drilling into the outer concrete block wall. I marked the top two corners and a few other points to get the rough shape.
Wizz around to the outside and draw the rough shape left. Chain drill the shape and knock it out. You've a bit of leeway which the cat flap can cover over. I had to knock up an ickle bit of cement to replace a bit of blown render, but none of the drilled holes are no show.
To drill a 8" core will take some drill. I've a dedicated core drill. I've used SDS drills in the past gifted by employers to drill cores <5" and it knackers the drill. The clutch isn't up to the job. Then the cost of the core which isn't a popular size. All add's up.
Answer, chain drill it. t

The cat flap is actually for our pet rabbits, I previously paid someone to put a cat flap in the back of my garage, he used a core drill and made it look so easy. But I can no longer find the guy. I found someone else, but he wanted £400 !!! to do it. I just need this done with as little hassle as possible. The flap is going into a single skin out building. I guess I will end up drilling it and chisseling it. But thanks for all the suggestions.
iiyama said:
Pete, if you get stuck on this give me a shout and Ill drop by. I'm working in your neck of the woods as of next week, although thats only 5 mins or so from me anyway!
Cheers Ian, I'm not going to be in s
Dolittle said:
Cheers Ian, I'm not going to be in s
teley anymore, I'm moving Beaulieu way on Friday. Although thanks so much for offering to help. I think I may go the chain drilling route, and then chisel out the hole as suggested.
Beaulieu eh? Welcome to the New Forest. We did a similar wee project at my mum's place. 
We used an angle grrinder and the aforementioned hammer n t

TackMEU said:
Dolittle said:
Cheers Ian, I'm not going to be in s
teley anymore, I'm moving Beaulieu way on Friday. Although thanks so much for offering to help. I think I may go the chain drilling route, and then chisel out the hole as suggested.
Beaulieu eh? Welcome to the New Forest. We did a similar wee project at my mum's place. 
We used an angle grrinder and the aforementioned hammer n t

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