Answers.Body: <p>According to <a href="http://www.ldraw.org/library/official/parts/4216.dat" rel="nofollow noreferrer">LDraw</a>, the slot is 8 LDU wide (1 plate, 3.2mm) and 5 LDU deep (quarter module or stud, 2.0mm). Here's the relevant quads from the LDraw file for reference:</p>
  
  <p><img src="https://i.sstatic.net/Smuv8.png" alt="width"></p>
  
  <p><img src="https://i.sstatic.net/8gdYa.png" alt="depth"></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-07-06T01:59:10.430Z
Answers.Text: Thanks for answer. I guess you mean 3.2 mm wide and 2.0 mm deep? I don't know LDraw. But I guess these are the correct dimensions.
Answers.UserDisplayName: midnite
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-07-06T14:00:49.567Z
Answers.Text: That's correct. I misplaced my decimal converting to millimeters originally, but the correct dimensions are ~3.2mm wide and ~2.0mm deep.
Answers.UserDisplayName: jncraton
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-07-04T22:58:04.093Z
Answers.LastActivityDate: 2015-07-06T13:59:20.937Z
Answers.LastEditDate: 2015-07-06T13:59:20.937Z
Answers.UserDisplayName: jncraton
Body: <p>What is the dimension of the groove of LEGO part #4216 or #88393?</p>
  
Tags: <piece-information><size>
Title: Groove dimension of 4216 or 88393?
UserDisplayName: midnite
ThreadText: # Groove dimension of 4216 or 88393?
  
  (Asked by: username_0 on 2015-07-04)
  
  What is the dimension of the groove of LEGO part #4216 or #88393?
  
  **Tags:** piece-information, size
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2015-07-04. Score: 4 | Accepted answer
  
  According to [LDraw](http://www.ldraw.org/library/official/parts/4216.dat), the slot is 8 LDU wide (1 plate, 3.2mm) and 5 LDU deep (quarter module or stud, 2.0mm). Here's the relevant quads from the LDraw file for reference:
  
  ![width](https://i.sstatic.net/Smuv8.png)
  
  ![depth](https://i.sstatic.net/8gdYa.png)
  
  > **Comments:**
  > **username_0**: Thanks for answer. I guess you mean 3.2 mm wide and 2.0 mm deep? I don't know LDraw. But I guess these are the correct dimensions.  
  > **username_1**: That's correct. I misplaced my decimal converting to millimeters originally, but the correct dimensions are ~3.2mm wide and ~2.0mm deep.  
  
  ---
  
  