| 摘要 |
An anti-slip fastener driver (1;1a;1b;1c;1d;1e;1f;1g;1h) includes a body portion (10;10d;10e;10f;10g;10h) and a driving portion (11;11a;11b;11c;11d;11e;11f;11g;11h) formed at one terminal end of the body portion. The driving portion includes at least one peripheral face (111;111a;111b;111c;111d;111e;l1lf;111g). At least one contact face (12;12a;12b;12c;12d;12e;12f;12g;12h) is formed at one distal end of the driving portion opposite to the body portion. The contact face is beveled and at an inner included angle (±; ±1; ±2; ±3) less than 90 degrees to the peripheral face. The contact face is adapted to abut against a terminal section of a bottom surface of a socket formed in a fastener to increase contact area between the socket and the anti-slip fastener driver for providing enough friction to turn the fastener. |
