|   | 
    Measuring Range | 
    Order No. | 
    Vernier reading | 
    Limit Error | 
	L | 
    a | 
    b | 
    c | 
   
  
    |   | 
    0-150mm(0-6") | 
    121-101 | 
    0.01mm(.0005") | 
    ±0.03mm | 
	230  | 
    100  | 
    8.5  | 
    14.5  | 
   
  
    |   | 
    0-200mm(0-8") | 
    121-102 | 
    0.01mm(.0005") | 
    ±0.03mm | 
	280  | 
    100  | 
    8.5  | 
    14.5 | 
   
  
    |   | 
    0-300mm(0-12") | 
    121-103 | 
    0.01mm(.0005") | 
    ±0.04mm | 
	380  | 
    100  | 
    8.5  | 
    14.5 | 
   
  
    |   | 
    0-500mm(0-20") | 
    121-105 | 
    0.01mm(.0005") | 
    ±0.05mm | 
	580  | 
    100  | 
    7  | 
    15 | 
   
  |