Shop Tip #??? Broken Tap Removal
Yea, Yea.... I know it has been a while since I have shown my face or added my 3 cents, but here I am
Over the years, I have provided several shop tips about lessons and various tricks I have learned. Well today I discovered a new one and I thought I would share it with you folks.
While cutting 10-32 threads into one of my parts, I broke the tap Having many hours into fabricating this part, you can only imagine my dismay and the raging expletives.
I hate breaking taps and throughout my life, I have broken a my fair share of them, probably more than most people, and out of all the taps that I have broken, I may have been able to extract two, three, or four at the most, with today being one of those instances.
Luckily for me, when the tap broke today, it broke off about 1/16 of an inch above the surface of my part. 1/16 does not provide a lot of metal to grab onto, but being unwilling to just abandon my part, I put some thought into the problem and my past failures at broken tap extraction. Being a triple fluted tap, I came to the conclusion that I needed a three prong tool to match the three indentations of the tap and then it dawned on me, I have the perfect tool already , a salvaged keyless chuck from an old cordless drill I figured it was at least worth a try
While keeping the jaws of the chuck firmly against the face of my part and aligned with the indentations of the broken tap, I slowly but surely hand tightened the chuck upto the broken tap. Once it was aligned and firmly engaged, I tightened it with a little more torque. Being content that it was as good as it was going to get, I decided to try and untread the broken tap from my part. To my amazement, it worked flawlessy
My part was salvaged, which makes me happy, and I also learned a new trick, that I wish I would have learned long ago