Holes at rear of gas hob

[DIYspanner]

They're drilled into the rim. I'm curious about their purpose, to act as vents perhaps?

Can anyone enlighten me please?

 

[bernardgreen]

Possibly indexing for locating the part ( onto a jig ) during assembly

 

[jj4091]

Are they on the underside of the hob. Could they be drain holes for any spillage that got in there.

 

[DIYspanner]

Since they're on the hob's top surface, I'll fit some small grommets to cover them. I don't want fluids dripping down into the hob and causing an issue with the workings.