Mouth width
Mouth width denotes:
- the width of the jaw opening for open-ended wrenches, see wrenches # Usual opening widths
- the width of the mouth opening for pipe wrenches
- For rims, the inside dimension between the rim flanks, see bicycle rim #Mouth width or car rim # dimensions
- the size of the opening in piston rings
- the size of the opening for clamshell buckets
