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G70 - bolt hole circle.

According to the entered radius of the circle and the number of holes, the holes for the bolted connection are drilled.

The G70 CNC G-code works with G73, G74, G76, G77 and G81 – G89 CNC G-codes.

G70 I... J... L...

 I Radius of the bolt hole circle ( – CW / + CCW ).
  J Start angle of the first hole.
  L Number of bolt holes.


To manually create a CNC program for drilling holes located in a circle, you can use the free online utility.


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