| 摘要 |
A screwdriver with replaceable blade is inserted in the longitudinal direction of the handle from one end in non-rotatable complementary manner into an opening having a non-round cross section with which there is associated a spring for holding the blade by friction. The opening is formed from a socket which is of polygonal shape on an inside and an outside thereof and a part (x) of the length thereof is held in non-rotatable complementary manner within the handle while the remaining length (y) thereof projects beyond an end surface of the handle said socket being formed on an inner wall thereof with an annular groove, and a spring of ring shape is disposed partly in the groove. |
