What adjustment will be necessary to the wear offset to machine a pocket to a diameter of 2.992" if the current bore is oversize?

To achieve a pocket diameter of 2.992" when the current bore is oversize, it is essential to adjust the wear offset downwards. An oversize bore indicates that the current dimension is greater than the desired size, meaning the tool is removing too much material.

In this situation, a negative adjustment of -.004" to the wear offset will compensate for the excess material present in the bore. By reducing the offset, the tool will effectively take less material away from the sides of the pocket, bringing the final dimension closer to the target of 2.992". This adjustment ensures that the machined pocket achieves the correct diameter by accounting for the existing oversize condition.

In essence, the adjustment must account for the difference between the current size and the desired size by subtracting the necessary amount from the offset, thus confirming that a negative adjustment is indeed necessary in this case.