Sore Holes! What should I use?

[Marti]

And the first filthy minded individual that answers "Vaseline" goes to the back of the class
About to buy a HOLE SAW set. One of those with the dinky QR arbor to push the disk out will do nicely. My, very serious, query is "what sizes are the most useful?"
20 and 25mm for grommets and conduit perhaps but down lighters seem to be every damm size!
Your thoughts ladies and gentlemen?

 

[Leesparkykent]

20mm,25mm,32mm,38mm and 51mm for brass bushes. 64mm for recessed PIR's. 75mm for the fire cans I use and 90mm for tilts. 114mm for 4" ducting.

 

[telectrix]

as lee's post . except for the 114mm. for that i use apprentice's head.

 

[suffolkspark]

20mm,25mm,32mm,38mm and 51mm for brass bushes. 64mm for recessed PIR's. 75mm for the fire cans I use and 90mm for tilts. 114mm for 4" ducting.

I find the 114mm ones bore a bit of a slack hole for 4" grilles when using round ones as the fixing holes end up right on the edge....

sorry I also just wanted to say slack hole, its Friday

 

[Phil Thompson]

Ive 2 of every size from 20mm up to and including 83mm, and 1 of 105mm or thereabouts, and 1x 114mm which was the one I meant to buy when getting the 105 or thereabouts. Anyways it was way too tight for fans and grills lol

 

[sam400]

Get a set of armeg hole saws for the smaller sizes! Then just buy the bigger sizes as you need them.

 

[telectrix]

i like these. the shoulder stops excessive penetration ( Ooo, Matron ), saving cutting into live cables in trunking etc.

 

[Leesparkykent]

i like these. the shoulder stops excessive penetration ( Ooo, Matron ), saving cutting into live cables in trunking etc.

I have a set of these 20mm, 25mm and 32mm. The starret set I brought went blunt quick so brought the First for performance set that CEF stock and it's held up really well.F4P - First for Performance - https://www.f4p-products.com/products?button=&page=5&q%5Bdescription_short_or_catalogue_or_brand_name_cont_any%5D=Hole+saw&utf8=✓