What does this sign mean?

Pioneer
Pioneer

Please see the attachment.

 

I don't understand what the sign surrounded by red line is. Could you explain about this sign?

2 REPLIES

Re: What does this sign mean?

Esteemed Contributor
Esteemed Contributor
.625 hole... Through with 1 inch counterbore .375 deep.


Ken

Production: ST10 MP3
Testing: SE 2019

Re: What does this sign mean?

Pioneer
Pioneer
Thanks a lot!!