oil plugs

[fpv_escort]

Hi everyone. I am having trouble taking out the oil plugs in a 1600. I have accidently rounded one off so would it be possible to drill it out. I am using a 6mm alan key thing

Thanks

[dirty hands]

if this is the gearbox

if you are going to drill coat the drill shank in thick grease so the drill fillings dont go into the box
can you use a cold chisel and hammer on the outside edge of the plug to loosen ?
I use a stick welder and zap a spanner /allen key or a nut onto the plug
that gets the job done