| 摘要 |
A double-ended hexagonal shank tool bit (10) for extracting Phillips head or similar screws (50) with damaged heads (52). One end (16) of the tool (10) shapes the screw head recess to a flared opening (72). The other end (26) of the tool (10) is tapered with left-hand screw threads (30) and diametrically opposite longitudinal gashes (46) arranged to enable the tool (10)to engage the sides of the shaped recess (72) and remove the screw (50).
|
