Originally Posted by
onehundred80
No need for photos, but we are not talking of precision machining here.
6.0 mm = .236 diameter
6.1 mm = .240 diameter
A letter B drill is .238 diameter
A letter C drill is .242 diameter
There is not much difference between them.

Yeah, ONLY 2/1000ths of an inch? Hardly a difference is right UNLESS the guy holding the drill wiggles like he11 while holding the running drill! Still, I bet the 'serts' would be real tight! Just do not use a really long drill bit, maybe??? Never can be too careful with what is behind it (as a GENERAL rule).
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