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The usual proportion for the width of key is. (a) d/8. (b). d/6. (c). d/4. (d). d/2.?
What factors determine which proportion is used for a key's width?
The size and function of the key typically determine which proportion is used for its width. For example, a larger key used for a heavy-duty lock may require a wider width than a smaller key for a regular lock.