DCN R-8D :  SUMOCHAM 12xD drills with indexable heads, cylindrical 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 230-184-32R-8D  23.00  23.90  184.0  32.00  42.00  220.4  60.0  23.0
  DCN 240-192-32R-8D  24.00  24.90  192.0  32.00  42.00  230.0  60.0  24.0
  DCN 250-200-32R-8D  25.00  25.90  200.0  32.00  42.00  239.5  60.0  25.0

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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