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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

Magnetic Base Indicator Holder

Magnetic Base Indicator Holder

Magnetic base indicator holder with one-knob lock
Permanent magnet has an 80 kg (176 lb) holding force
On/off switch makes it easy to position
V-groove base allows you to mount it on cylindrical surfaces

$56.95

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Collet Set, R8 Metric, Set of 10

Collet Set, R8 Metric, Set of 10

Set of ten R8 round collets in metric sizes
Hardened and ground to close tolerance
Made of high grade tool steel
7/16" -20 drawbar thread
0.0007" (0.018 mm) maximum runout

$57.95

Regularly $64.95

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Fog Buster Sprayer Coolant System with Tank, 1 Outlet

Fog Buster Sprayer Coolant System with Tank, 1 Outlet

FogBuster model 10100 with one spray oultet
1/2 gallon clear coolant tank
Stainless steel handle, nozzle with magnetic stand, and pressure regulator
Reduces airborne pollutants in shop

$455.95

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Dial Indicator, Test Indicator, Magnetic Base & Point Set

Machinist's Calculatorlmscnc.com/calc