Broken Tap Fail...

Рет қаралды 5,416

Күн бұрын

Пікірлер: 26

@bcbloc02 10 жыл бұрын

This is why I tap nearly exclusively with tapping attachments with friction clutches you can set for the size of the tap. I find that even hand tapping I am prone to thinking it can take a little more.....oops no it can't. lol You finished the job though so Getter done!

@CompEdgeX2013 10 жыл бұрын

In the absence of good taps we've all tried power on a hand tap. Sometimes it actually works. The second lesson here was that carbide drills are even more brittle than taps and feed pressure has to be gentle. LOL Just wait until you break one of your GOOD taps!! ;-) Colin

@phuzzz1 10 жыл бұрын

Hi Toby, it really sucks when a tap breaks, as you said, I try to make a habit of not power tapping with 4 flute taps, always use a spiral point as opposed to spiral flute where possible, and when I even think a tap is beginning to dull, I stop whatever I'm doing and walk it to the nearest garbage can and promptly deposit it there for safe keeping, as I have discovered that is the safest and most cost effective place for it to be. When the inevitable happens and you do break a tap as you did here, the procedure I have found to be pretty effective in getting it out is to sand/grind the splintered areas away to get as much of a flat as you can on it, and then use a smaller high quality carbide 4 flute center cutting endmill to hopefully break/cut/shatter/grab and push or whatever to get the broken piece out. Naturally, this or any other method will prove more successful on a through hole than a blind hole, as the saying goes, "your mileage may vary" just my thoughts on the subject. Mike

@allenhunt3070 Жыл бұрын

Enjoyed your presentation! Hope to see your work some more.

@phyuckyiu2445 8 жыл бұрын

Awesome video, as someone who deals with hardmilling heat treated material on a regular basis, couldnt help but chuckle. Love the videos, hope to see more! :)

@JTZshokunin 7 жыл бұрын

Haha, I do as well these days! And thank you, I should be making more soon!

@KeithFenner 10 жыл бұрын

All good comments, I think we all have been there and the more you use taps, the more your habits and procedures tailor to a reasonable price and quality of tap, for your tapping needs, lend to less frequent mishaps. I consider all four flute taps as rust chasers, and when I have my droughts about even that, chuck them in a half of a heart beat. Also realistically look at the value of the tooling your going to take a chance on using, to remove the mistake, against the value of the part and time you have involved. Sometimes you can set aside the broken stuff and the frustration and whip out another in less time and or cost. ;{)-----

@shadowdog500 10 жыл бұрын

It almost worked!!! I have to try solid carbide bits. Last year I bought an $18 pneumatic dentist drill and a pack of 10 small carbide dental cutters on Amazon. Works good If you are in a tight situation, and it will will slowly drill a bolt or tap out but it may take 10 or 20 minutes for a tap.

@YCM30cnc 10 жыл бұрын

Most of us learn more from what goes wrong than what goes right. No matter how many times an old timer (or other experienced hand) says "... Don't do that...." Most of us eventually succumb to the thought of "I'll just try it gently and see what happens"; it's often only a short while after that when the thought "that old timer was right" wanders through the brain. You will be wise beyond your years very soon.

@EVguru 10 жыл бұрын

I try to not even hand tap with hand taps, it's spiral point or flute all the way if possible!

@chipwright6193 10 жыл бұрын

The dreaded broken tap. It's never fun getting a broken tap out. I like the two flute spiral point taps the best. At work I cheat and use the wire EDM to cut the center of the tap out.

@arkansas1313 10 жыл бұрын

We've all done it. On the postive side, it was accessible. Just another lesson in life! ....13

@geedubb2005 10 жыл бұрын

an inexpensive oops is always better than an expensive one, especially if there's no blood. Don't worry young fellow, there will be more.

@RyanWeishalla 10 жыл бұрын

Luckily the 8-32 tap I broke off tonight did so 1/2 inch above the part, so I was able to get a pliers on it and back it out. Sucks when they break off flush.

@jtkilroy 10 жыл бұрын

What size did you drill?

@JTZshokunin 10 жыл бұрын

James Kilroy No.7 drill.

@RyanWeishalla 10 жыл бұрын

James, for me I used the drill that came with the drill/tap set that I got for the 8-32, so I don't know for sure what the drill size was. I think the nut I was trying to tap may have been a little harder than I thought, too.

@jtkilroy 10 жыл бұрын

#7 is the tap drill for 1/4x20, 8x32 should be a #29 for a cutting tap. If you have really tough materials or tons of thread engagement do not fear trying a larger hole to lessen cutting forces.

@JTZshokunin 10 жыл бұрын

James Kilroy Oh, actually this was a 5/16...I used an F drill.