Private company

Proto

Logo: Proto Tools, Public domain, via Wikimedia Commons3

American tool company

Proto Tools (formally Stanley Proto) is an American industrial hand tool company. Founded as Plomb, it is presently a division of Stanley Black & Decker.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1907Founded1

Proto Tools (formally Stanley Proto) is an American industrial hand tool company. Founded as Plomb, it is presently a division of Stanley Black & Decker.2

Timeline

  1. 1907Founded Founded1

Sources

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