Rotary tool for driving English and metric threaded members

Details Rotary tool for driving English and metric threaded members Rotary tool for driving English and metric threaded members

1976-06-04

1978-07-18

Smith, Al Lawrence

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

B25B 1306

Patent

active

041008243

ABSTRACT:
A rotary tool having an opening with a first set of peripheral notches providing bearing surfaces for engaging English size driving portions of threaded members and a second set of peripheral notches providing bearing surfaces for engaging metric size driving portions of threaded members.

REFERENCES:
patent: 445451 (1891-01-01), Miller
patent: 639243 (1899-12-01), Jaeger

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