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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 
 
 
Disc Cutter Set, 1/4-5/8", 7 Piece
Disc Cutter Set, 1/4-5/8", 7 Piece
  • 7 Piece 1/4-5/8" Disc Cutter Set
  • Set includes 1/4, 5/16, 3/8, 7/16, 1/2, 9/16 & 5/8" disc sizes
  • Punches are made of case-hardened tool steel
  • The top and bottom plates are made of durable shock-resistant tool steel through hardened for long-w
  • Round disc cutters let you cut perfectly round discs in up to 1mm (18 gauge) thick metal sheets

$54.95
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Turning & Boring Tools, 3/8" Indexable, Triangle Inserts
Turning & Boring Tools, 3/8" Indexable, Triangle Inserts
  • 4 turning tools
  • 1 - 6" boring tool
  • Inserts and torx wrenches
  • 3/8" shank
  • Uses TCMT-21.51 inserts

$86.95
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HiTorque 7450 Deluxe Mini Lathe - 7x16, LED Display
HiTorque 7450 Deluxe Mini Lathe - 7x16, LED Display
  • All the Features of the HiTorque 5100 (brushless motor, gearless spindle drive, extended bed, etc.)
  • LED display with illuminated controls and integrated spindle speed readout
  • 2-Axis Bluetooth DRO (w/tablet) on ways and cross feed, DRO readouts on tailstock and compound
  • Aluminum hand wheels and chrome levers
  • 0XA wedge-type quick change tool post and five tool holders

$2,099.00

Regularly $2,299.00
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