replacing sink strainer

[keen2learn]

Hi and sorry for the noob question, I will be replacing the sink strainer in my kitchen sink tomorrow and the screw head is 10ml slotted, I do not own and can not find a 10ml slotted screwdriver, best I can come up with is a 6ml that fits in the hole in the screw and gives me traction to do and undo the current screw is this how its done or is there a better way? what tool do you guys use in the trade?

Thanks in advance

 

[Burnerman]

Anything with a nice broad blade.....an old blunt wood chisel is a favourite!
John

 

[longdogs]

I use an old small metal T square