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 Hole Making      Family: DCT (M8-M24) Indexable Head Drills with Chamfering Insert, Mainly for Pre-Thread Holes       Designation: DCT 175-042-20B-M20  
 
 
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.
  17.30   17.99   17.50   21.00   20.00   42.0   63.0   50.0   43.40   17.0   M20

  Catalog No Primary View
File (2D)
Model (3D) Detail Model (3D) Light
  3201008 Not Available
3D Required
 

7000836         7000836  SR 34-508  Details    
 
7000270         7000270  T-7/51      
 
7002279         7002279  K DCM-17      
 

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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