LittleMachineShop.com is the premier source of tooling, 
parts, and accessories for bench top machinists.  
Contact Us (800) 981 9663
Your Orders
Cart  Cart
   

On Sale
Value Packs
New Products
All Products
Catalog
Store Location
Outlet Store

 
Have you seen?
Drill Set, 29 Piece Screw Machine Length HSS
 
 
Most Popular of
Indexable End Mills
Indexable End Mill, R8, 2"
Indexable End Mill, R8, 2"
Additional popular items
 

Machinist's Calculator

Our mobile app; read this with your phone.
lmscnc.com/calc

 
Onliine Metals  

 

  

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
Quick Change Turning & Facing Tool Holder, 0XA $12.95

More information
Quick Change Turning & Facing Tool Holder, 0XA
Belt Drive Conversion Kit, Mini Mill
  • No more broken drive gears
  • Much quieter operation
  • Spindle speed up to 4300 RPM
  • Ideal for manual and CNC mini mills

$154.95

More products like this
Tooling Plate, 6 x 12"
  • Made from aluminum plate 3/4" thick
  • Plate is 6" x 12"
  • 220 Holes tapped 1/4"-20, 72 holes for locating pins
  • Includes clamping kit
  • Designed for small work pieces

$139.95

More products like this
Cratex Bullet Shaped Points
  • Diameter: 9/32", Length: 1", Arbor hole: 1/16"
  • For Proxxon and Dremel rotary tools
  • Sold individually
  • Mandrels fit 1/16" arbor hole

More products like this
Contact Us / Company Info / Privacy Policy / Warranty / Terms & Conditions / Payment Options / Shipping Rates & Policies
Copyright © 2007-2021 LittleMachineShop.com
 
Phone: (800) 981-9663