What tool for making hole bigger in old red bricks

[glassofpop]

I'm trying to replace a old 40mm waste pipe but the new pipe is to tight in the hole so I need to knock off the brick where it's catching so is it best to buy a sds drill with chisel function or can I buy a tool that will grind down the brick with a normal drill. If you recommend me buying an sds drill can you recommend one that's not to expensive but is capable of using core drills.

 

[^woody^]

Don't you possess a hammer and small cold chisel. Or perhaps a rough file?

A SDS is OTT.

 

[aveatry]

How about a tile file, is it just annoying rough nibs in the hole. Or maybe buy a cheap 40mm core drill bit, very cheap may only do a couple of holes but that is all you need.

 

[glassofpop]

Don't you possess a hammer and small cold chisel. Or perhaps a rough file?

A SDS is OTT.

I tried with a cold chisel in the past and the bricks are to hard. Why do you think a sds drill is over the top.

 

[ETAF]

file or grinding wheel - an SDS drill may take off a lot more and Break out lumps of the brickwork at the edges and the faces

 

[glassofpop]

file or grinding wheel - an SDS drill may take off a lot more and Break out lumps of the brickwork at the edges and the faces

Can you recommend what file or grinding wheel to use.

 

[foxhole]

https://amzn.eu/d/6PqAo4k

https://amzn.eu/d/8bJSo2h

 

[ETAF]

what tools do you have ?

maybe a Tungsten carbide grit Heavy Duty File, or diamond file

if you have a multi-tool maybe this sort of blade - I have used on hard brick work
i have used these

Multi Tool Blades | Saxton Blades | Shop Online

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Multi Tool Blades | Saxton Blades | Shop Online

Discover our wide range of multi tool blades great for precise cutting for a range of materials | Wood & Metal Blades, Sanding Pads & Sheets | Shop →

www.saxtonblades.co.uk

maybe a large masonry drill bit run around the inside of the hole - if you have a drill

https://www.screwfix.com/p/erbauer-straight-shank-masonry-drill-bit-16mm-x-150mm/779PH?gclsrc=aw.ds&gad_source=1&gad_campaignid=21546469601&gbraid=0AAAAAD8IdPzmyiX8sHCIK1c8K13iKVemj&gclid=CjwKCAiA86_JBhAIEiwA4i9Ju1-MxuTHPjbFj0ZkR9YpzfhYnNdC-JrhbT1oNxow69KkZBsS31bHrxoC7wwQAvD_BwE

maybe a grind wheel for a drill

https://www.amazon.co.uk/HIGHDRIL-Enlarging-Diameter-Drilling-Porcelain/dp/B09KGTSVT7/ref=asc_df_B09KGTSVT7?mcid=9f08320234db3b6c89881782948bc39e&hvocijid=13294783129988445130-B09KGTSVT7-&hvexpln=74&tag=googshopuk-21&linkCode=df0&hvadid=696285193871&hvpos=&hvnetw=g&hvrand=13294783129988445130&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9191170&hvtargid=pla-2281435176658&gad_source=1&th=1

Or as you say an SDS drill, whenever i used a sds drill withe a chisel bit (i have 3 types) on a Dewalt mains cable version with normal and sds chuck - to get the action to start you do need to put pressure on and that may just blow out large chunks of the brickwork

 

[opps]

Is it is a solid brick wall (9"deep), or is it a cavity wall.

If they were red rubber bricks, they would be soft. You may have fletton bricks. They are pretty hard.

TCT core drills are much cheaper than diamond bits..

TCT Core Drill Bit

If you're drilling into surfaces such as brick, breeze block, masonry or concrete, this professional TCT core drill from Toolpak guarantees quick, clean holes.The 40mm core drill's tungsten carbide tip provides high performance and impressive durability. It's suitable for both impact and rotary...

www.toolstation.com

But you will need an arbor to help it interface with your drill. That is assuming that you have a drill.

Many of the products recommended thus far may, or may not be deep enough to enlarge the hole.

Be advised that trying to core drill a pre-existing hole can be difficult. Given that you are only increasing the hole by a couple of mm, you risk the bit snagging. Make sure that any drill you use has a clutch, and ideally a secondary handle.

Photos, including the current size of the hole, plus a list of the tools you have will help others advise you.

 

[^woody^]

I tried with a cold chisel in the past and the bricks are to hard. Why do you think a sds drill is over the top.

A hard brick is actually easier to break with a chisel as it fractures better. Was it a sharp chisel?

A sds chisel will perform exactly the same as a hand chisel, but be harder to control. So not much good for widening a hole slightly but great for widening it massively by cracking all the bricks around the hole and slipping down the face.

But if you are just using this scenario as an excuse to buy a sparkly sds drill, I approve and will sign the note for the Mrs.