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Bolt Circle Calculator

 Calculator Menu

Enter values below to calculate the coordinates of the holes in a bolt circle.

Number of Holes N
Diameter of Bolt Circle D   in  mm
Diameter of Holes d 
Angle of First Hole A  degrees
Offset of Center X     Y 
 
 
Transfer Punch Set, Sizes #1-60, 60 Piece
Transfer Punch Set, Sizes #1-60, 60 Piece
  • 60 Piece #1-60 Transfer Punch Set
  • Range is #1 to #60
  • Heat treated and tempered tool steel for long life
  • Transfer punches are 0.0025" undersize for precise fit

$28.95
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  • Most powerful and most low-speed torque in its class. No gears in spindle drive
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