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 Tooling Systems      Family: DCT (M8-M24) Indexable Head Drills with Chamfering Insert, Mainly for Pre-Thread Holes       Designation: DCT 068-021-14B-M8  
 
 
Chamfering   Drilling   COOLANT 
D minDo not mount smaller drilling heads than specified range for drill body. D max DnominalPre-thread hole diameter. D2 d L L1 L4 L5 Po. Size ThUsed for standard thread size.
  6.80   7.49   6.80   13.90   14.00   21.0   41.9   45.0   24.70   6.8   M8

  Catalog No Primary View
File (2D)		 Model (3D) Detail Model (3D) Light
  3201003 Not Available
3D Required
  Reduce recommended feed for DCT 6.8 mm drills by 10%.
 

7000836  7000836  SR 34-508  Details    
 
7000270  7000270  T-7/51      
 
7002284  7002284  K DCM- 8      
 

Hole tolerance: D+0.05 in average conditions. However, it can be higher or lower according to machine and tooling conditions.
Dnominal is the pre-thread hole dia.





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