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DIN 7991 Countersing hole

Question asked by Martin Hradil on May 19, 2015

Hello, I think i hit on bug when making countersing hole under DIN 7991 standard.

The hole is not big enough to fit DIN 7991 screw.

 

link to screen:     http://s27.postimg.org/8j0mipsw3/image.jpg

link to standard:  http://mdmetric.com/fastindx/uc52_56.pdf

 

Thanks for any hints,

 

Martin

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