(248) 348-7800

sales@belknaptools.com

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Contact Us

Van F. Belknap Co., Inc.
29164 Wall Street
Wixom, MI 48393 USA
(248) 348-7800
sales@belknaptools.com

Printer-Friendly VersionNEED A SPECIALLY
DESIGNED TOOL?

You're at the right place! Belknap is the Leader in Specialty Torque Applications. Check out our Specialty Tools Gallery for a small sampling of what we've produced for our customers over the years.

EXTENSIONS CALCULATOR

USING ADAPTERS OR EXTENSIONS

Adapters or extensions should only be used in line with the wrench, as opposed to being at an angle, and the actual torque applied will be greater than the torque reading shown.

To obtain your desired torque reading, use the below calculator by inserting your values in the following order:

  1. Extension Length
  2. Wrench Length
  3. Actual Torque

This program is based on the ideal equation:
ACTUAL TQ = INDICATED TQ x (WRENCH LENGTH + EXTENSION LENGTH) / WRENCH LENGTH

NOTE: We are not responsible for inaccuracies or errors. Please check the output for accuracy before using in a production environment.

Extension CalculatorDownload the desktop version:
ExtensionCalculator.zip
791 KB

  • Square Drive Hex Driver
    Sockets
    #12 Hex Drive with
    Square Drive
  • Speeder Open End Crowfoot
    Crowfoot Adapters
    #7 Open End Speeder
    Crowfoot
  • Fixture Thread Checker Holding
    Fixtures
    #2 Thread Checker Holding
    Fixture
  • Adjusting Tool Camber
    Torque Wrenches
    #2 Camber Adjusting Tool
  • Handle Square Drive
    Assembly & Installation
    #11 Square Drive with Handle
  • Moving Battery Tool
    Material Handling
    #5 Battery Moving Tool
  • Drive End Axle to Transmission Gauge
    Drive Ends
    #13 Axle to Transmission
    Gauge Drive End
  • Torque Wrench Large Octal Nut
    Torque Wrenches
    #7 Large Octal Nut
    Torque Wrench
  • Extended Socket Ratchet Slip-Torq
    Torque Wrenches
    #1 Ratchet with Slip-Torq
    and Extended Socket
  • Torque Wrench Maxi-Break Click
    Torque Wrenches
    #12 Maxi-Break Click
    Torque Wrench
  • Fixture Steering Shaft
    Fixtures
    #7 Steering Shaft Fixture
  • Fixture Park Brake Lever Assembly
    Fixtures
    #6 Park Brake Lever
    Assembly Fixture
  • Drive End Torx Offset
    Drive Ends
    #3 Torx Offset Drive End
  • Tool Scrivit Install
    Assembly & Installation
    #13 Scrivit Install Tool
  • Tool Jam Nut
    Torque Wrenches
    #18 Jam Nut Tool
© 2003-2014 Van F. BELKNAP Co., Inc. • 29164 Wall Street, Wixom, MI 48393 • CALL 248-348-7800 • FAX 248-348-9821 • EMAIL sales@belknaptools.com