Hi Dave,
You really do need something slightly larger than 1/8" for rivets, else they
don't go in easily. Hardware stores (in the US) usually carry number drills
in addition to inch sizes. A #30 drill is .1285in which is perfect for 1/8"
rivets, while a #40 is useful for through drilling a 1/8 solid rivet when it
needs to be removed because it didn't (oops) set properly.
A #12 drill is .1890in which works for 4.8mm.
Hardware stores sometimes give out pocket charts listing drill numbers vs
size in thousandths of an inch.
Regards,
John, A044
|