Two Forms of Bucking Bar

bucking bars in general and more particularly to a tool which has a longer serviceable life, an appreciably lower fatigue factor and a lower decibel shock and vibration rating in use.

The bucking bars of this include two principal parts separated by a low-recoil impact-resistant urethene plastic member, to absorb the shock load and minimize vibrational effects which contribute to the otherwise high-decibel rating of the tool. They are fastened together by means that allow some relative movement between them but keeps the cushioning member in contact with both parts at all times.

In one of the preferred forms, the handle part is formed with an undercut notch towards the toolhead and the latter is formed for engagement therein so that both axial and lateral thrust loads are absorbed in the tool. This particular tool is also reversible in that the end of the handle part is also formed for taking an impact load and the head end may be used as the handle.

Another form  includes mating cylindrical parts with a blind end separated to absorb the shock load.

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