The top of the thread is turned off 0.010 inch to allow the scriber F to slide freely on the screw.
Chewing the scriber and needling his brain, he slowly built up a list of other possibilities.
A scriber is a piece of steel wire having a hardened sharp point wherewith to draw lines.
Lay out the form with a sharp steel point or scriber, saw as close to lines as possible, and with a fine file finish to line.
On the scriber is placed the zero mark which shows at a glance the measurement that is being taken.
A little oil placed on the scriber point will keep it from sticking in the metal.
The sleeve is graduated with fifty divisions each equaling a movement of the scriber of 0.001 inch.
The hole for the scriber in the scriber clamp of a surface gage is reamed out to fit the rods used with inside micrometers.
A knurled locking nut is also provided for holding the scriber in any fixed position.