In this area of the Drafting Zone website, Subscribers can communicate specific questions about mechanical
drafting standards and practices to the Zone's Technical Director, Gary Whitmire. Gary will review your question and respond accordingly, if possible. When Gary provides an answer to your question, you will
receive an email informing you that Gary's response has been posted to the website. In the event that he is unable to
answer a question, you will receive an email notification. As a rule of thumb, Gary will only provide responses to
questions that can be answered in fewer than 100 words. Although only Drafting Zone Subscribers are able to submit
questions, Guest Members can browse and search all questions and answers.
 Browse Answers | Search Answers | Post New Question
Q: Gary, how do you dimension a Countersunk hole in which you know the thru part will chage when the CSK is applied.
We have a drawing that lists; 0.156 Dia. PILOT, Countersink 0.290 x 100 deg.
Due to the material thickness when the CSK is applied the thru hole increases to app. 0.164. How would you list this hole so incoming inspection does not reject it?
Thanks.
A: I would specify (diameter symbol).156 PILOT, (diameter symbol).164±.XXX FINAL.
|
|
