Nail bit, [i, 452].
Nail forging machines, [ii, 261].
Non-condensing engine, [ii, 372].
Nose bit, [i, 453].
Notch wire gauges, [i, 384].
Number of cutters used for a train of wheels, [i, 41].
of cutters on boring bars, [i, 290].
of cutting edges on taps, [i, 105].
of cutting edges on reamers, [i, 282].
Nut-tapping-machine, [i, 475].
automatic socket for, [i, 475].
rotary, [i, 475].
three-spindle, [i, 475].
Nuts, filing, [ii, 105].
jam, [i, 119].
lock, [i, 119].
lost motion in, [i, 120].
removing corroded, [i, 122].
securing by cotters, [i, 121].
by notched plates, [i, 121].
by taper pins, [i, 121].
devices, [i, 120].
steam tight, the forms of, [i, 118].
taking up the wear of, [i, 120].
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