COMPOSITE BOX WRENCH WITH REINFORCING AND RETAINING STRUCTURE

摘要

A composite box end wrench has a non-metallic body (21) including a handle portion (22) and at least one head portion (23, 24) which defines a fastener-receiving opening therethrough. A reinforcing structure (40) strengthens the head portion (23, 24). In one embodiment, each head portion (93) has a fastener-engaging member (95) insert molded therein along with a reinforcing plate (97). The reinforcing structure could alternatively be a band (106) extending the length of the wrench. In a ratcheting version, the non-metallic body (25) is split lengthwise into two parts (25, 25A), each with reinforcing structure (40) therein. The wrench body may be provided with an outer non-metallic sheath (120, 136) which covers at least the handle portion of the body (92, 132).