Drilling Eccenter Sleeves :  Used for enlarging or reducing DR nominal drilling diameter by shifting the drill off-center  
 
 
  Designation
d2
D3
D1
L
  ECCENTER SLEEVE 20X25  20.00  25.00  40.0  44.00
  ECCENTER SLEEVE 25X32  25.00  32.00  50.0  46.00
  ECCENTER SLEEVE 32X40  32.00  40.00  65.0  67.00
  ECCENTER SLEEVE 40X50  40.00  50.00  75.0  77.00

(1) Holes for inserting a pin, used to facilitate radial adjustment of the sleeve (pin not supplied).
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