USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 2/TASK 2
chaser in the other hand and run it around the threaded section. Hold the
chaser firmly so that the cutting teeth are parallel to the threads in the
work, as shown in figure 146. The cutting action will follow the previously
cut threads and restore the damaged portion.
USING THREAD CHASERS.