N°7 FORI - Meaning of? Couple of drafting questions 1

[NZSheety]

Good Morning from New Zealand!

Im currently re-drafting a set of photocopied drawings from a cleint, but because the drawings are from their Italian supplier there are a couple of phrases/symbols that im not familiar with

1. 25MM diameter hole with the phrase "N°7 FORI" next to it. I understand the FORI relates to the ±0.2mm on the drawing, but what does the N°7 mean?

2. The below symbol is next to some holes in the plates, is this regarding some sort of tolerance?

Thanks!

 

[greenimi]

2.) ASME Y14.36, Surface Texture Symbols

First symbol = No Material Removed (NMR).

Symbol in ( ) Material Removal Required (MRR).

 

[NZSheety]

Thanks for that mate,

Have bought the ASME standard, that's all clear now

 

[Burunduk]

Hi NZSheety,
The surface finish symbols you have posted look like a general surface finish note: first one is unless otherwise specified (in thia case, no machining process, no roughness value required), second one in parentheses is what is specified for some specific features on the part, as also should appear in the drawing views - machined surface, Rz12.

 

[cadddict]

"1. 25MM diameter hole with the phrase "N°7 FORI" next to it. I understand the FORI relates to the ±0.2mm on the drawing, but what does the N°7 mean?"

FORI = Holes thus the note = 7 holes @ 25mm.
I too have just started being exposed to drawings from Italy on a new project.