GUNSMITHING AND TOOL MAKING BIBLE
outside, the barrel will need to be filed while it is spinning. When the barrel is as smooth as you want it, remove the barrel, ...
THREAD FACTS The following will give you information on the threads so they can be better understood. Thread cutting on the lath ...
times the pitch, and so on. Most screw threads are single. The single screw thread has a single ridge and groove. The thread ang ...
piece speed must be adjusted. The width of the crest will correspond with the width of the tool's nose when the thread is cut to ...
THREAD-CUTTING TOOLS For each of the types of thread a tool bit to form that particular thread must be ground. Since the form of ...
The V on the edge of the gage is used for setting the tool in the tool post of the lathe. The centerline of the V-point is perpe ...
After this setup is made and the work is turned to the proper outside diameter, the work piece is left right in the lathe and th ...
THREAD CUTTING IN A LATHE Threads that must be accurate with some turned part must be turned in the lathe at the same setting us ...
The cross-slide is then adjusted to its zero reading and the compound advanced a distance equal to the next cut. The operation i ...
The compound slide is used to feed the tool into the work. By feeding the tool on the 60" angle to which the compound slide is s ...
When it is not necessary that the nut run up tight against a shoulder, the tool can cut its own finishing groove if you open the ...
The position at which the half nut should be closed depends upon the pitch of thread. For odd-numbered threads, close half nuts ...
Tighten the tool post screw. Be sure not to change the position of the holder. Recheck the tool setting after tightening the too ...
A good grade of lubricant should be used on the tool when threads are being cut. Mineral lard oil is a very good lubricant for t ...
A wrench or some other tool must be used to force the nut onto the bolt. Tighter fits than those mentioned require special fabri ...
TAPS AND THREADING The tap is used to cut internal threads. There are many forms of taps used in manufacturing work, but the han ...
The entire thread can be cut this way, which is rather slow or, after it is well started, the work can be removed from the drill ...
for a free-running nut, and the adjustable die can do this. It is also possible to cut an undersize thread by rerunning the thre ...
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NOTE - The above dimensions were taken directly from the barrel and not from factory specifications. ...
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