The only problem with this is you must have an insert for each thread pitch which is way to expensive to use in the home shop. At work we use thread forming inserts on the lathe that actually cut the top of the thread behind the one being cut normally which makes a very smooth thread on the top. The biggest cause of rough threads is running the work to slow while cutting the thread and no lubricant. Form taps have lubrication grooves but no cutting faces and do not cut threads or produce chips. While they are not material specific, they do not work on all materials. Also one single point tool is a lot cheaper than a bunch of dies. Roll tap is a forming tool, not a cutting tool, treat it accordingly. Page -> Tap the center of the page -> In the bottom menu that appears, tap the. Most threads I've seen cut with dies that weren't perfectly sharp looked worse than any cut with a single point tool. Douluo: If You Cut Me, You Will Lose the Treasure, Bibi Dong is Addicted. With a little practice you can make a thread with a single point tool look as good or better than any done with a threading die. Some of the big stuff gets real expensive real fast.Practice makes perfect Dog. In my shop threads done with dies look much better and you ain't as likely to get cut on any jagged edges! I expect there are places you can go single point that you have a hard time with a die.
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