[Setup guide in Metric?]

if the feeler gauge to adjust the neck relief  on a les paul is as thick as a piece of paper then it is about 0.002 inch = 0.05 mm not 0.50 mm
if the feeler is 0.005  inch then it is  about  0 .13 (0.127)  mm  not 0.50  mm   
 in Europe  they recomend 0.30mm to 0.50mm  neck relief 
  this confusion     makes  me mad  

[Setup guide in Metric?]

 A piece of paper  is 0.05 mm , then why they say 0.5 ?   It;s   like 5 cents of a dolar or euro and 50 cents  it;s different .  I have found schematics and layouts to build a complete amp and i can;t find a set up  les paul guide in mm  .  makes me  mad