| 摘要 |
There is provided a tool for repair of damaged threads of screws, including a body ( 2 ) having a projecting portion ( 4 ) for accommodating a screw to be repaired and having two recessed major surfaces; two blades ( 6, 6 '), each having a rear end ( 32, 32 ') hingedly articulated in the body ( 2 ) and front end in the shape of a cutting face ( 46, 46 ') substantially fitting the type of thread to be repaired: means ( 10, 12 ) to alter the distance between the cutting faces ( 46, 46 ') and the projecting portion ( 4 ) to accommodate screws of different diameters, and wherein the rear ends ( 32, 32 ') of the blades ( 6, 6 ') are configured in such a way that they are capable of serving as pivots, whereby the blades ( 6, 6 ') are hingedly articulated to the body ( 2 ).
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