Theoretical Machinist Desktop Applications


JcTimer, Timer with unlimited alarms and logging utility
for Windows® desktop


Timer utility with unlimited alarms and simple logging feature

App secreenshot screenshot
  • Compatible with: Windows 8, Windows 7, Windows Vista

  • Multithreaded Timer application for Microsoft Windows® Desktop

  • Count up or down, Software keeps track of  clock time or user defined time entry.

  • Large number of alarms: Stop at time, beep at a specific time or beep at every time interval.

  • Simple event logging function or Split time. The logging feature add an entry to a text editor at the click of a button. The log can be edited in any fashion while the timer is running. Simply copy and paste the results in your favorite text editor when done.

  • Accurately synchronized to system clock

This software does not collect information about the user. This software is free to use as as long as it is not modified in any way. no fee is to be charged for it's use.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
This software is Copyright © 2015 Joly Concept 
The code for this application is signed by Joly Concept.
Cancel the installation if you get a warning that the publisher is unknown at installation time.
Linking directly to the installer executable from another website is prohibited.


TheoreticalMachinist Charts Icon

Theoretical Machinist Chart for Windows® desktop

All Windows Versions screenshots
  • Decimal Equivalent chart
  • Fractions from 1/2" to 1/512" increments up to an inch
  • Metric increments from 1.0mm to 0.125mm up to 25mm
  • Number screw sizes
  • Displayed data is customizable
  • Keeps track of what you last looked at and screen position
  • Docking feature
  • Copy to clipboard functionality
  • Languages: English/ Français
  • Compatible with...
    • Windows 8
    • Windows 7
    • Windows Vista
    • Windows Xp
      (.NET framework 4)
Read the Terms of use and Privacy policy
before download
You will be asked to agree to these terms after application launch.

this is free ad-supported software.
this software DOES collect application usage information.
this software does NOT collect personal information about you.
Support: forum / email

This software is Copyright © 2013 Joly Concept 
Du to last minute issues. The code for this application is NOT signed by Joly Concept.
Cancel the installation if you get a warning that the publisher is unknown at installation time.
Linking directly to the installer executable from another website is prohibited.


Theoretical Machinist Checksum Generator
for Windows® desktop


Cryptographic Hash Checksum Generator for files on Windows PCs

App secreenshot screenshot

 Compatible with: Windows 8, Windows 7, Windows Vista and Windows Xp

 This software generates MD5, SHA1, SHA256, SHA384, SHA512 hashes of files as large as the Operating system will permit. This utility is basically a front end to the Windows cryptographic API in the .NET Framework.


THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
This software is Copyright © 2013 Joly Concept 
Du to last minute issues. The code for this application is NOT signed by Joly Concept.
Cancel the installation if you get a warning that the publisher is unknown at installation time.
Linking directly to the installer executable from another website is prohibited.

Last Updated: 04 February 2015

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