Drilling through Sandstone

[Ryooo]

Hi folks, I've got an outside tap to fit on Monday. It's a sandstone building. Anyone know the right size and type of drill bit. I have a standard 18mm 600 to 800mm in length masonry bit which I use with a Makita 18v hammer drill. Should I bring a transformer/generator and use a core gun with the correct attachments.

I don't want to turn up with the wrong tools for the job. Thanks

 

[ShaunCorbs]

sds plus and the 800mm 18mm

 

[Burger]

Hi folks, I've got an outside tap to fit on Monday. It's a sandstone building. Anyone know the right size and type of drill bit. I have a standard 18mm 600 to 800mm in length masonry bit which I use with a Makita 18v hammer drill. Should I bring a transformer/generator and use a core gun with the correct attachments.

I don't want to turn up with the wrong tools for the job. Thanks

Use an sds drill and 24mm (800mm length) sds drill bit so you can sleeve your pipe, assuming it’s 15mm.

 

[Rob Foster]

Hi folks, I've got an outside tap to fit on Monday. It's a sandstone building. Anyone know the right size and type of drill bit. I have a standard 18mm 600 to 800mm in length masonry bit which I use with a Makita 18v hammer drill. Should I bring a transformer/generator and use a core gun with the correct attachments.

I don't want to turn up with the wrong tools for the job. Thanks

Sandstone is as soft as poo dont
worry as is limestone..chking

 

[townfanjon]

As CBW above says , sleeve it with overflow pipe or some 20 mm sparkie plastic conduit

 

[Ryooo]

Thanks troops

 

[Last Plumber]

Read this link. Don't forget your mask and use the right type.
I know it is one hole but it's worth having it in mind.

 

[king of pipes]

Drill Outside to inside is all I would add to the guys comments its easier to make good internally than risk blowing the face of the sandstone pilot drill a smaller hole first. Kop

 

[gmartine]

Use SDS bit but turn SDS off at least to start, as above sandstone is soft so you shouldnt need to go at it like a jack hammer. If you really need to turn it on do so after an inch or two in.

 

[Millsy 82]

Oh I miss sandstone. Give me that over granite any day.

 

[Rob Foster]

Oh I miss sandstone. Give me that over granite any day.

Bath Stone is so soft you can saw it with a rip saw all day long, granite is awesome stuff to work chking

 

[Ben-gee]

Sandstone is as soft as poo dont
worry as is limestone..chking

You’ll have to be more specific Rob, what have you just eaten? Or refer to a number on the Bristol Stool Chart!

 

[Rob Foster]

You’ll have to be more specific Rob, what have you just eaten? Or refer to a number on the Bristol Stool Chart!

I never eat until after 18.00
any day unless some company pays for my lunch chking

 

[Ryooo]

Don't know what I was worrying about. I even bought a 20mm x 1000 sds bit on the way. Quickest outside tap I've ever done. In and out in a hour. Perfect. Cheers for the advice troops.

 

[Jim Goodenough]

Jobs done Ryooo,

Just an aside I tend to use '4' point tip SDS bits for 8, 10, 12, 14mm bits these days rather than 2. Reason I've had some real hassle in the past with '2' point tip getting jammed.

Here's a link to some good '4' point tip bits Milwaukee SDS Plus MX4 Masonry Drill Bit 6.0 x 215mm

 

[SimonG]

10mm inside out 3/4" outside in.