| 摘要 |
A pole butt removal tool is an unconventionally threaded shaft and a hub. The unconventionally threaded shaft has a minor diameter, a major diameter, a hub end and a terminal end with the terminal end ending in a conical point. The major diameter as a ratio to the minor diameter of the thread is greater than a major diameter/minor diameter ratio of Unified Coarse Thread Series (UNC) and the pitch is significantly less than Unified Coarse Thread Series (UNC). |
