Wrench for hexagonal nuts

Tools – Wrench – screwdriver – or driver therefor – Rigid jaws

Patent

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Details

81119, 81186, B25B 1306

Patent

active

060985011

ABSTRACT:
A wrench for rotating hexagonal fasteners includes an opening defined by a sidewall. The sidewall includes a plurality of contact surfaces for contacting respective sides of the fastener. Each contact surface includes two groups of generally parallel ridges separated by a recessed portion. Each of the ridges has a convexly curved top for contacting a side of the fastener.

REFERENCES:
patent: 3242775 (1966-03-01), Hinkle
patent: 4126063 (1978-11-01), Palmer
patent: 4930378 (1990-06-01), Colvin
patent: 5148726 (1992-09-01), Huebschen et al.
patent: 5481948 (1996-01-01), Zerkovitz
patent: 5806383 (1998-09-01), Hsieh
patent: 5832792 (1998-11-01), Hsieh
patent: 5860339 (1999-01-01), Mikic et al.

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