| 摘要 |
The present invention comprises a reversible drive ratchet wrench (10). A formed metallic insert (50) is provided. The reversible drive ratchet wrench (10) has a length, a head (14), including a ratchet mechanism (36) and a handle (16). A formed metallic insert (50) has an opening (28) for insertion of a ratchet mechanism (36). The formed metallic insert (50) also extends along the handle (16) of the wrench (10). A non-metallic covering (13) is molded around the metallic insert (50), encapsulating the head and entire length of the metallic insert (50), except for the interior of the opening (28). The non-metallic covering (13) is injection-molded around the metallic insert (50). The non-metallic covering (13) has a low dielectric value and may comprise glass fibers distributed longitudinally and/or nylon or copolymers. A non-metallic covering (13) may be of uniform thickness or varying thickness. The reversing lever (18) may also be made of the composite material.
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