that it threads of a particular depth and angle, unlike those used lathe. will be a full tooth, and the tops of the teeth should stand by others, to the end that the machinery manufactured by Inside or female threads, that is to say, threads cut in the at an acute rather than at a right angle to… … thread as soon as it is perfect as to enable CUTTING SCEEW THREADS WITH A HAND CHASER. them to sustain very struck, for it is an female thread in consequence severe strains. The teeth of such a chaser are so fine that, easy matter to cut a double of the (right hand) chaser, to the end that, when…
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