Bridge,
The space between finger holes.
Pin,
The yellow, white, black, etc...color dot the size of your pinky tip........a solid piece of plastic used to hold the core in place when making the coverstocks.
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In the old days people used to cut wood with axes.....................now and days...............they just have Executioners do it for them!
Pin_Krusher IS a serious threat to modern day bowling wood as we know it today.