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Bolt Circle Calculator

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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 
 
 
Quick Change Tool Post Set, 0XA, Mini Lathe, 4-Degree Cut-Off
Quick Change Tool Post Set, 0XA, Mini Lathe, 4-Degree Cut-Off
  • Quick change tool post set for lathes with up to 9" swing
  • 60% of AXA, or series 100 size wedge type QCTP
  • This lathe quick change pool post set includes a 4-Degree Cut-off tool holder
  • Includes five tool holders
  • All steel construction

$139.95

Regularly $154.95
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Lathe Chuck, 3-Jaw 4" Premium, Harlingen
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  • Self-centering 3-Jaw lathe chuck
  • 4" (100 mm) diameter
  • Radial runout maximum of ≤ 0.002" (0.05 mm)
  • High quality components for enhanced wear-resistance
  • Includes chuck key, inside and outside jaws

$139.95
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Quick Change Tool Holder - Lathe Bit Rapid Retractor, 0XA
Quick Change Tool Holder - Lathe Bit Rapid Retractor, 0XA
  • Works with 0XA tool post
  • Makes threading easier and safer
  • Made in the USA

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