Uploaded November 2025 | Updated September 2026, 55 minutes ago

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William Petersen, the inventor of the Vise Grip, designed a few unusual variations of his pliers, that were never produced, and only exist as patent documents.
Today we'll go over these, and use the power of basic 2D keyframe animation to bring them to life, and see how they work.

The Full Story of Vise-Grip: youtu.be/StL2Sf5awBc&list=PL-fhNrtmTAv286gDzTcav8FyxCagDTouy
Malco and the Eagle Grip: youtu.be/XXHktpdlCfM&list=PL-fhNrtmTAv286gDzTcav8FyxCagDTouy
The Mole Wrench: youtu.be/RU33uRP8YIE&list=PL-fhNrtmTAv286gDzTcav8FyxCagDTouy
Hose Pinching Pliers youtu.be/Pcs-JM0ZW_Q&list=PL-fhNrtmTAv286gDzTcav8FyxCagDTouy

Check out the full Tool Lore playlist here: youtube.com/playlist?list=PL-fhNrtmTAv286gDzTcav8FyxCagDTouy

Patents:
1923 Original Wrench: patents.google.com/patent/US1489458A
1945 Locking Adjustable Wrench: patents.google.com/patent/US2481866A
1945 Parallel Jaw: patents.google.com/patent/US2417013A
1944 H. Jones Release Lever: patents.google.com/patent/US2514130A
1954 External Release Lever: patents.google.com/patent/US2711663A
1956 Release Lever: patents.google.com/patent/US2838973A
1956 Non Locking Lever: patents.google.com/patent/US2853910A
1962 Chain Wrench: patents.google.com/patent/US3192804A

Yes, the drafting board in the background is a real thing, and they still make them:
(shameless affiliate link): amzn.to/43Bkl5t

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Chapters:
00:00 Intro
00:47 How it Work
01:29 Parallel Jaws
03:08 Release Levers
04:38 Non-Locking Locking Pliers?
05:33 Alternate Chain Wrench
06:20 Outro