The trademark "Fruit of the Loom" is a play on words. The phrase "fruit of the womb" (children) appears in the Bible and elsewhere, and the rhyming word "loom" is the basic threading tool used to...
I believe you are talking about dies and taps- which have a sort of inward cut Maltese Cross appearance, or cloverlead appearance in the stock, which is placed in a holder- and the job begun.
Mechanically by a fixed reference. One turn of the barrel equals 25 thousandths of an inch- sometimes called 25 mills ( do not confuse with milimeters) therfore it can be read-off by an experienced...