what is the best way to cut a socket hole out of a stainless steel splashback with mdf backing

Mark out the template of the socket, lay masking tape over the corners and remark these onto the masking tape (this is to stop the drill bit skidding). With a HSS (steel) drill bit large enough for a Jigsaw blade to pass through, drill just inside all the corners. Then with a Jigsaw and correct blade cut across the straight lines.

hi, tray which grander , spacial blade for stainless steel. rgs

you need a good hole cutter to do this, regards Terry.

probably a grinder with a thin metal cutting disc. Or Dremel type tool with smaller thin disc

exactly as steve knight says

Mark out the socket and drill a 6mm hole in each corner and use a metal cutting blade to cut out the rest, make sure to mask of the outside area of the socket to ensure no scratching of the panel. Hope this helps. Steve Knight SW Designs

with a jig saw with a blade suitable for cutting metal.

use a metal cuting jigsaw blade

Hello. The best tool for this job is a small electric multi tool, something like a dremmell or similar. Regards TSH Builders

cover the area you need to put socket with masking tape mark area to be cut and drill 4 holes 1 in each corner and cut out with jigsaw with correct blade and then file and rough areas

Use a metal(HSS)drill bit of maybe a 10mm and drill all four corners then use a jigsaw with a bi metal blade on a slow speed....Ohhh you might want to use a piece of masking tape in each corner to stop the drill bit slipping and scratching the stainless steel.