Drilling down lights

[Aussiespark]

Has anyone got any tips for drilling multiple holes, 32 90mm holes to be exact. In fridge panel, insulated panel, cool panel roof sheets? I have just done 3 house’s with 32 Downlights each and drilled top and bottom, but was hoping for an easier way?

 

[Mike Johnson]

I use one of these for deep holes: Starrett 92mm Holesaw, cut out holesaw,FCH0358 UK - https://www.directtradesupplies.co.uk/product.php/189673/starrett-92mm-fast-cut-bi-metal-hole-saw--yellow-?gclid=CjwKCAiAy9jyBRA6EiwAeclQhAp6oOK2cTRQaDNmKy1WKe3r9kIwFdUZulrRDpfyK5VZ7lv_dgyT4BoCC8IQAvD_BwE

and one of these to catch the debris: Holesaw - Dust and Debris Eliminator - https://www.tlc-direct.co.uk/Products/FXDADE.html

other than that what are you using? or what problems are you having?

 

[Aussiespark]

I use one of these for deep holes: Starrett 92mm Holesaw, cut out holesaw,FCH0358 UK - https://www.directtradesupplies.co.uk/product.php/189673/starrett-92mm-fast-cut-bi-metal-hole-saw--yellow-?gclid=CjwKCAiAy9jyBRA6EiwAeclQhAp6oOK2cTRQaDNmKy1WKe3r9kIwFdUZulrRDpfyK5VZ7lv_dgyT4BoCC8IQAvD_BwE

and one of these to catch the debris: Holesaw - Dust and Debris Eliminator - https://www.tlc-direct.co.uk/Products/FXDADE.html

other than that what are you using? or what problems are you having?

No massive issues just 32 holes each on these three houses and the next lot I’m doing is 12 houses, but I need to find a deeper holesaw that will do top and bottom with ease. The debris catcher is a good thought though. Or the engineer could listen when I say we do not need 11 downlights in a 6m x 4m area withceiling fans