| 摘要 |
An insert type drive tool (20) is configured to be insertable within both a square-shaped cavity (32) and a hexagonal shaped cavity (40) of the same size. In cross section shank (24) of tool (20) includes a pair of major sides (26) disposed in spaced parallel relationship to each other, and a pair of minor sides (28) also disposed in spaced parallel relationship to each other. The minor sides (28) are disposed substantially perpendicularly to the major sides (26) and are spaced apart from each other substantially the same distance separating the major sides (26). Two pairs of intermediate sides (30) extend diagonally from each end of major sides (26) at an angle of approximately 120 DEG to intersect an adjacent end of a corresponding minor side (28).
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