No flame taken.

But often, guys have some common tools when they don't have the uncommon ones. And very often on a topic it's good to move out a bit on the topic's main point for the benefit of any beginners reading the thread.

BTW, I'd say that if anyone is spending any money on RC at all, they'd be well advised to protect whatever that amount is. And a reamer is along the lines of balancing props, as a very sensible expenditure of money and time. Truth is, there is a huge parallel between the reamer and a balancer.

And I'm surprised the topic hasn't gotten some of the same marginal advice that balancing gets. After all, they're basically the same issue. Same deal, just to a different degree of probability.

Also, consider how much has been spent on a model whose size requires props that need reaming. Very few cheaper, smaller models' props need the holes opened up.

I'd suggest that no matter what your budget is, your advice is good without the caveat. Protect whatever was spent. And it looks like you found the best price around. (I had just done a search and come here to post that link. chuckle.... You gotta get up pretty early to beat the best, don't ya'.)