International Tolerance Grades

International Tolerance Grades
	Post Reply		Forum

Posted by: bsmith ^®

06/10/2006, 09:38:36

Author Profile eMail author Edit

Ive just received some drawings that are toleranced with the symbol.+/-IT13 over 2
2
My question. Is the lower number(2)the basic size, and is IT13 the grade? If so then the 0.140 converts to give me a tolerance of +/- .00551 inches. Am I correct ?

Modified by bsmith at Sat, Jun 10, 2006, 09:39:36

Post Reply | Tell a Friend (must be logged in) | Alert Admin About Post

View All

| Next |

Replies to this message

Re: International Tolerance Grades

Re: International Tolerance Grades -- bsmith Post Reply Top of thread Forum

Posted by: Kelly_Bramble ^®

06/14/2006, 22:41:32

Author Profile eMail author Edit

I'm not sure I understand exactly what you are asking, can you post a picture of the specification?
I suspect you may have a form drawing with variable applicable sizes. If this is true, then if you have sizes 2mm you are allowed +/- 0.14mm - which is roughly +/- .005".
Could also be a per unit tolerance specification, in that for every two mm of length you are allowed +/- 0.14mm variation.
On this webpage /international_tol.htm we have a IT tolerance chart. You have to have adobe reader installed on you computer to see it.

Post Reply | Tell a Friend (must be logged in) | Alert Admin About Post Where am I? Original Top of thread

Re: International Tolerance Grades
Re: International Tolerance Grades -- bsmith	Post Reply	Top of thread	Forum