Today (Wednesday) we are launching the new site. We expect a few hours of downtime and then likley some scrambling to adjust. Please be patient as we make the transition.

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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  in  mm
Diameter of Holes
Angle of First Hole degrees
Offset of Center     Y 
 
 
SPECIAL OF THE WEEK
Machinists Center Square, 1-1/2" $9.95

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Machinists Center Square, 1-1/2"
Belt & Disk Sander, 1" x 30" Belt & 5" Disc
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  • Dual cast aluminum tables tilt 0-45°
  • Table Tilt 0-45°
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Regularly $169.99

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Upgrade Kit, Mini Mill
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Dial Indicator Holder for AXA Quick Change Tool Post
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