larger diameter nozzle

looking for a 0.7mm to 1mm nozzle closest i have found is 0.6mm. i use the type with 6mm male thread.
also im in ohio so i dont want to pay shipping from outside us

could i just drill out a smaller nozzle? i have read you want a longer hole the bigger hole diameter i think i read 1.5 times the hole diameter.

i did drill one out of a 0.5mm nozzle it seemed to work ok .

if i have to make my own how long should i make the hole?

thanks
joe

[reprap.org]

If you send me the drill bits I can do it for you.

thanks for the offer but if i get bits i can have a friend do it. just not sure how long to make hole or if it makes a much of a difference

1 millimeter should do it.