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ME tapping dril sizes
| Ian Sugden | 24/01/2013 00:07:48 |
| 7 forum posts | I have done that Dave but the background is black and I cant see half the text |
| mechman48 | 24/01/2013 10:49:59 |
 2947 forum posts 468 photos | Tried to download; running Vista...'CRASHED MY PC' !!! B****CKS, ..will keep my Newnes Engineers pocket book, Presto drilling & tapping ref book, MEW drill & tap ref.charts (early years).. George |
| David Littlewood | 24/01/2013 12:05:30 |
| 533 forum posts | Guys, Listen to Roderick, he's the only one who has given the correct advice so far. Most thread tables give tapping drill sizes which are too small; this dramatically increases the risk of tap breakage, especially if they are not perfectly sharp. This is the worst for ISO metric threads (where the fact that the taps are bigger than nominal size is an added factor) but this is true to some extent for all sizes. Buy the book he recommends, it'll be worth it, it's only about 5 quid! David |
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All Forum Topics > Beginners questions > ME tapping dril sizes