enlarge existing hole in metal panelling

[wsoppitt]

hey guys / girls,
Whats the best way to enlarge a round hole in overhead metal panelling ?
Unfortunately i cant find a holesaw the correct size , so advice needed.
thanks

 

[westward10]

What diameter is the current hole and how much do you need to enlarge it?

 

[buzzlightyear]

The best way is to double up a hole saw, say 32 to 35 on the arbour.

 

[wsoppitt]

What diameter is the current hole and how much do you need to enlarge it?

currently 70mm need to open up to 160mm

 

[wsoppitt]

The best way is to double up a hole saw, say 32 to 35 on the arbour.

they dont make a holesaw to size i need

 

[buzzlightyear]

they dont make a holesaw to size i need

Yes they do.

 

[buzzlightyear]

Power Tools, Hand Tools, Fixings | 7 Days, Next Day Delivery | FFX - https://ffx.co.uk › product › Get › S...
Starrett DCH160M 160mm Deep Cut Bi Metal Holesaw - FFX

 

[wsoppitt]

Yes they do.

ok , i will rephrase that last comment , i cant seem to find 1 that size.

 

[Rockingit]

at that size, what's wrong with a jigsaw for a one-off?

 

[wsoppitt]

for arguments sake , if a holesaw for a specific size wasnt available

at that size, what's wrong with a jigsaw for a one-off?

There will be 6 holes to enlarge and only have an available depth of 40mm , so wouldnt be too keen on using jigsaw

 

[Spoon]

but you are sorted now as @buzzlightyear has shown you where to get a 160mm holesaw.

 

[Rockingit]

but you are sorted now as @buzzlightyear has shown you where to get a 160mm holesaw.

And not as much as I'd thought it would be, either. In fact, I'll buy one and I'll rent it to @wsoppitt for let's say £10 per hole?

 

[wsoppitt]

but you are sorted now as @buzzlightyear has shown you where to get a 160mm holesaw.

yes , but still be interested to know how to sort it if 1 wasn't available for future reference

 

[timhoward]

yes , but still be interested to know how to sort it if 1 wasn't available for future reference

At the end of the day there aren't that many ways of making a circular cut in a panel of metal. A hole saw or punch is where my mind starts. A jig saw is probably the next most practical. A gas axe is probably over the top! An angle grinder and lots of filing is possible but will be messy. Using smaller hole saws many times and some filing is also possible.
I'm not sure there's a right answer to your question or that I'm helping much!

 

[wsoppitt]

At the end of the day there aren't that many ways of making a circular cut in a panel of metal. A hole saw or punch is where my mind starts. A jig saw is probably the next most practical. A gas axe is probably over the top! An angle grinder and lots of filing is possible but will be messy. Using smaller hole saws many times and some filing is also possible.
I'm not sure there's a right answer to your question or that I'm helping much!

thanks for the response , tried looking for a fine toothed narrow blade for multitool , but cant seem to find anything suitable.

 

[wsoppitt]

And not as much as I'd thought it would be, either. In fact, I'll buy one and I'll rent it to @wsoppitt for let's say £10 per hole?

does that include labour

 

[timhoward]

thanks for the response , tried looking for a fine toothed narrow blade for multitool , but cant seem to find anything suitable.

There are metal blades for multi-tools and I missed that off the list. In my opinion it would be quite hard to multitool a large circle as the material will be vibrating like mad and you'd have no easy way to counter this.

 

[wsoppitt]

There are metal blades for multi-tools and I missed that off the list. In my opinion it would be quite hard to multitool a large circle as the material will be vibrating like mad and you've have no easy way to counter this.

thats a good point

 

[Rockingit]

does that include labour

Well if it comes back with sweat on it I'll have to add an extra cleaning charge

 

[snowhead]

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