OPENTECHNICAL PUBLICATION OT-2026-000003317 Rotary wrenching tool Published: 2026-09-15T20:08:46.804958Z Permanent URL: https://opentechnical.org/p/OT-2026-000003317 Categories: Tools & Tooling > Clamping Tools ------------------------------------------------------------------------ ABSTRACT Rotary wrenching tools are sized, in one embodiment, to strongly and adequately receive heads of fastening members of two or more nominal sizes having maximum size ratios in the approximate size ranges of 1.0053-1.1430 for square heads and 1.0053-1.0600 for hexagonal heads. Visible indicia of the sizes of at least two different fastener head sizes are carried adjacent each opening. 1. Drawings [0001] Sheet 1. [0002] Sheet 2. [0003] Sheet 3. [0004] Sheet 4. [0005] Sheet 5. [0006] Sheet 6. ------------------------------------------------------------------------ OpenTechnical publication OT-2026-000003317 Published 2026-09-15T20:08:46.804958Z https://opentechnical.org/p/OT-2026-000003317