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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 
 
 
SIEG C3 7x14 Mini Lathe
SIEG C3 7x14 Mini Lathe
  • Full featured miniature lathe at an incredible price
  • Includes 3" 3-jaw chuck, 2 sets of jaws, and chuck key
  • Variable speed with two speed ranges for low speed torque
  • Digital spindle speed readout
  • Cam-lock tailstock

$999.00
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Quick Change Tool Holder - Lathe Bit Rapid Retractor, 0XA
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Quick Change Tool Post Set, 0XA, Mini Lathe, 4-Degree Cut-Off
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  • Quick change tool post set for lathes with up to 9" swing
  • 60% of AXA, or series 100 size wedge type QCTP
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$139.95

Regularly $154.95
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