This must be a typo, I would think MM. And if that is the case (millimeters) , then these things are HUGE.

Go to the LHS and you can get a "bag of weights" (Great Plains brand has them ), with 1/16 ID.
Or if you can't find them, get a set of Blade CP Pro flybar weights.....they are more expensive, but they should
fit. Try them all the way out on the end....if it is too touchy for you, then you can put 2 weights out there and try
it.
Then you can start working with moving the inner weights in.