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Have you seen?
Hammer, 1-lb. Dead Blow, Professional Grade
 
 
Most Popular of
Indexable End Mills
Indexable End Mill, Square Shoulder, 1/2"
Indexable End Mill, Square Shoulder, 1/2"
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Machinist's Calculator

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lmscnc.com/calc

 
Onliine Metals  

 

  

Bolt Circle Diameter Calculator

Calculator Menu

Enter values below to calculate the diameter of a bolt circle.

Number of Holes N
Center Distance Between Adjacent Holes  in  mm
 

Tip:

To measure the center distance between two holes of equal diameter with an electronic caliper.

1. Use the inside jaws to measure the diameter of one of the holes. Before you remove the caliper from the hole, press the button to zero the caliper while it is set to the diameter of the hole.

2. Still using the inside jaws, measure the distance between the far surfaces of the two holes. The caliper reading is the distance between centers of the two holes.

 
SPECIAL OF THE WEEK
Lathe Cover, Mini Lathe $17.95

More information
Lathe Cover, Mini Lathe
Hand Tapper, Compact with Magnetic Base
  • Compact & portable
  • Maximum stroke is 2.36"
  • Drill chuck enables easy loading of tap
  • Tap capacity is #0 to 1/2" (M3 to M12)
  • 175 lbs. on/off magnet base 2.36" X 2.36" X 2"

$149.95

More products like this
Productivity Upgrade Package, HiTorque Bench Mill
  • Incluces both the 5655 Spindle Lock and the 5633 Quill Stop in one easy, one-stop package.
  • Makes tool changes easier, faster, and more convenient.
  • Electro-magnetic interlock disables power to the motor with the fork of the Spindle Brake engaged.
  • Quick and accurate way to set quill depth of cut on 5500 Bench Top Mill.
  • Set accurate and consistent depth of cut for repeated machining operations.

$212.95

Regularly $224.95

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HiTorque 7x16 Mini Lathe
  • Extended bed (16" between centers) provides more working room
  • Most powerful lathe with most low-speed torque in its class
  • 4" 3-jaw lathe chuck
  • No gears in spindle drive
  • Cam lock tailstock

$949.95

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