Calculated Industries Machinist Calc 4086 User Manual - 10 — M

10 — M

achinist

 c

alc™

/ M

achinist

 c

alc™

 P

ro

g f

Model 4087 

only

Wire Size —

 Enters or calculates Wire Size for 

3-Wire Measurements. Unitless entries assumed 

Inches in U.S. mode; millimeters in Metric mode. 

Calculates the recommended Best (Ideal), Maximum 

and Minimum Wire Sizes given an entered Thread 

Size.

b

Bolt Pattern —

 Enters the number of holes in a 

Bolt Pattern. Calculates the hole Center-to-Center 

Spacing and the 

x and y coordinates for each hole 

in a Bolt Pattern given entered Diameter, Number of 

Bolt Holes, Starting Angle (optional) and Center x and 

y coordinates (optional; Model 4087 only). 

g b

Model 4087 

only

Thread Classification (Thread Class) —

 Used 

to select the Thread Class for numeric and fractional 

Threads and the Tolerance Class for metric Threads. 

The default Class for numeric and fractional Thread 

Sizes is 2B (Internal) and the default Tolerance 

Class for metric Thread Sizes is 6H (Internal). See

Thread Sizing

section for further details on available 

Classes.

g b

Model 4086 

only

Starting Angle (Start Angle)  —

Enters the Starting 

Angle of the first hole of a Bolt Pattern, with 0° being 

the three o’clock position and the rotation going 

counterclockwise.

t

Thread Size —

 Enters a numeric, fractional or metric 

Thread Size 

and provides Thread characteristics 

such as Cut Tap Drill Size, Minimum Major Diameter, 

etc

. See 

Thread Sizing

 section for further details on 

entry format, valid entries and a listing of the resulting 

Thread characteristics.

g t

Model 4087 

only

% Thread —

Enters a non-standard Thread Grip 

Percentage for use in determining screw Tap Drill 

Sizes. Default value is 75%.

(cont'd)