DCN A-8D :  SUMOCHAM 8xD drills with indexable heads, one flat shanks and internal coolant holes. Feature 4 standard drilling head types for drilling on 4 different material groups.  
 
 
Drilling   COOLANT 
  Designation D
minDo not mount smaller drilling heads than specified range for drill body.		 D
max
L
d
D3
L1
L4		 Po.
Size
  DCN 180-144-25A-8D  18.00  18.90  144.0  25.00  32.00  172.5  56.0  18.0
  DCN 190-152-25A-8D  19.00  19.90  152.0  25.00  32.00  182.0  56.0  19.0
  DCN 200-160-25A-8D  20.00  20.90  160.0  25.00  32.00  191.6  56.0  20.0
  DCN 210-168-25A-8D  21.00  21.90  168.0  25.00  32.00  201.2  56.0  21.0
  DCN 220-176-25A-8D  22.00  22.90  176.0  25.00  32.00  210.8  56.0  22.0

Prior to using the 8xD drill, it is recommended to drill a pre-hole by using a DCN 1.5xD drill or a centering drill.
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