IP 55 Enclosure from screwfix! code 33991

[davesparks]

Q max punches are the dogs danglies!

 

[shanky887614]

If you've not seen them before you drill a pilot hole then run a 10mm/13mm drill ,the punches are in two halves, separate them one end has a screw which goes thru the hole screw on the other side and tighten with a hex key/ratchet with hex socket, until it cuts thru and drops out
Its a bit slower but you get a perfect hole and they last for years!
Ps don't forget to remove the slug as my old apprentice did, he complained it was jammed .......never removed the slugs 5 of them
I just said "where did you think the metal from the hole had gone to?"

ill have a look, we tend to put at least 4 2" bushes between our headers and the panel

 

[Corbs]

on the brittle boxes ill always use a clean holesaw, there too easy to shatter otherwise

 

[edexlab]

I love them they are slower to use but you get a perfect hole everytime, also if the pilot hole is slightly off you can run a bigger drill thru and move the punch where you want it

 

[shanky887614]

I love them they are slower to use but you get a perfect hole everytime, also if the pilot hole is slightly off you can run a bigger drill thru and move the punch where you want it

have you tried it with an impact driver? i would use some cutting spray though

 

[SparkyJoe]

"Screwfix themselves are great"

Hah, if you're stuck on a sunday maybe, at a push.

 

[edexlab]

If you have to line something like trunking or a sub board up just drill the small pilot butt up the two items and mark ,drill , punch and it'll be spot on for bushes etc

 

[shanky887614]

"Screwfix themselves are great"

Hah, if you're stuck on a sunday maybe, at a push.

have you not seen the 24 hour ones?

where else can we go to laugh at diy chancers

 

[shanky887614]

If you have to line something like trunking or a sub board up just drill the small pilot butt up the two items and mark ,drill , punch and it'll be spot on for bushes etc

yeah through both together, good idea.

that is our biggest enemy a lot of the time.

swarf in the panel

 

[edexlab]

I think an impact driver would damage the cutting edges.
Am I the only electrician who doesn't have one??

 

[shanky887614]

I think an impact driver would damage the cutting edges.
Am I the only electrician who doesn't have one??

probably.

they make life a lot easier when using 3" screws etc

 

[edexlab]

Yeah you'll still have some from the pilot drills but nowhere near as much mess as with a holesaw
You can get a hydraulic tool to drive punches,I'm guessing a different type of punch possibly, panel builders sometimes have them, but I've never used one

 

[Aindowsimon]

http://www.ebay.co.uk/itm/181467421471
Use these in an impact driver absolutely brilliant ! Last a long time and perfect round hole . It's the durability of the bit that makes it had one over a year at times very heavy use