Talk:Single-pass bore finishing

A fact from Single-pass bore finishing appeared on Wikipedia's Main Page in the Did you know column on 22 September 2009 (check views). The text of the entry was as follows: Did you know... that single-pass bore finishing can finish a bore to a size tolerance of 0.001 mm and a geometry tolerance of 0.0003 mm? A record of the entry may be seen at Wikipedia:Recent additions/2009/September.

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There's a hidden note of "?" on the "gummy grades of aluminium and stainless steel" sentence. I'm not sure what the author meant by this. I don't know what else to call gummy grades other than "gummy". Wizard191 (talk) 15:12, 22 September 2009 (UTC)[reply]