AndrewL
Well-Known Member
I've got a set of Toolpak bi-metal holesaws which I bought from Toolstation. I used a 120mm to go through the cabin top when installing a vent, it made a clean cut without much effort. I've also used a 40mm one to cut through 3mm of stainless steel.
M3 Bi Metal Holesaw 51mm
M3 Bi Metal Holesaw 51mm