What is a Tap this big used for?

[greenreese]

I bought this in Maine at Liberty Tool, which is a used tool store. It is a 2 1/2 by 4 NC. It says Butterfield Derby Line VT. Made in USA. Also, U 4D3.
It is about 3-4 pounds and 8 3/4in long. Pic was just taken in Photobooth. I bought it for $14 and it is quite sharp.

Any info?

 

[bchee]

Don't know but I'm feeling really turned on right now

I'm guessing you bought it cause it was big and cool looking?

 

[greenreese]

Don't know but I'm feeling really turned on right now

I'm guessing you bought it cause it was big and cool looking?

Yeah, pretty much.

 

[SocketDeviler]

Didn't I see that strapped to a guy in the film SEVEN?

 

[kartracer55]

Obviously some BIG equipment. What I would really like to know, is what does a machine that can spin that tap look like??

 

[walrus]

I bought this in Maine at Liberty Tool, which is a used tool store. It is a 2 1/2 by 4 NC. It says Butterfield Derby Line VT. Made in USA. Also, U 4D3.
It is about 3-4 pounds and 8 3/4in long. Pic was just taken in Photobooth. I bought it for $14 and it is quite sharp.

Any info?

Liberty tool is a cool place, isn't it?

 

[bchee]

Here is another big tool. A huge 4-1/2" $640 socket. These never get old to me
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=120411373425&ssPageName=STRK:MEWAX:IT

 

[greenreese]

Liberty tool is a cool place, isn't it?

I've only been there twice. Both times I spent about 3 hours looking through every drawer.

The girl at the counter was amazed that I bought it, she said it had been there forever. Also got a gigantic tapered reamer, 2ft pipe wrench and all sorts of other stuff. Always wondered how they got that piano in the attic..

 

[speed bump]

Nordberg cone crusher liners are held in with 3" studs and that 4.5" socket would be perfect for putting on the nuts for them.

If I have time later i'll post a picture of the one I have from work complete with the broken stud from when they took it off. If your wondering why I have it, its because I thought that it would be cool to one up those guys with brass balls by hanging 2 of these off the back of my truck.

 

[bchee]

I've only been there twice. Both times I spent about 3 hours looking through every drawer.

The girl at the counter was amazed that I bought it, she said it had been there forever. Also got a gigantic tapered reamer, 2ft pipe wrench and all sorts of other stuff. Always wondered how they got that piano in the attic..

let's see picts of that other huge stuff you got....

 

[greenreese]

let's see picts of that other huge stuff you got....

They are in my box at work as they are actually used sometimes. This I couldn't ever see needing to fix a bicycle. I'll try and get pics tomorrow.

 

[greenreese]

My favorite Pedro's pint glass, Dogfishhead 60min, and a Snap-On 15mm for good measure.

 

[nate379]

I'm sure large equipment. Bath Iron Works maybe? We have 3" taps at work, but they are 10 or 14 TPI.

 

[jniolon]

could be a pipe tap... we have several at work that are seldom used... but worth their weight in platinum when you need em

john

 

[babzog]

Don't know but I'm feeling really turned on right now

Obviously some BIG equipment.

Here is another big tool.

those guys with brass balls ... hanging ... off the ... truck.

let's see picts of that other huge stuff you got

Is anyone else hearing 70's **** music? Wah-wah pedals and disco lights, anyone?

 

[-B-]

big stuff defiantly not for machine or turbine use are that is usually fine thread


I have 1.370" x 24 TPI RH & LH guess what they are for

 

[isr2kba]

I have one like that (not exactly the same size), but mine is used to make threads for lathe attachments.

 

[nissan_crawler]

big stuff defiantly not for machine or turbine use are that is usually fine thread


I have 1.370" x 24 TPI RH & LH guess what they are for

steering or suspension links?

 

[speed bump]

I'm sure large equipment. Bath Iron Works maybe? We have 3" taps at work, but they are 10 or 14 TPI.

Have a problem with those stripping out often? 3" NC (I haven't ever seen an NF) is about 3 TPI and 2.5 NC is 4 TPI so there's nothing special about the tap he has there other than it probably runs about $1000 new and he got it for $14 which is a hell of a deal. Applications that you would use it for are anything you need to put a 2.5" bolt in or mining equipment, large process equipment, power plant stuff and other fun what nots.

 

[Mike83]

big stuff defiantly not for machine or turbine use are that is usually fine thread


I have 1.370" x 24 TPI RH & LH guess what they are for

Bottom brackets - english thread

 

[Mike83]

My favorite Pedro's pint glass, Dogfishhead 60min, and a Snap-On 15mm for good measure.

Dogfishhead makes a 120min IPA. Comes at about a dollar an ounce at the bar.

 

[-B-]

steering or suspension links?

sorry wrong see below

Bottom brackets - English thread

bingo




I 'd like to have a set of 36mmx24TPI but they are so rarely used now

 

[nissan_crawler]

What's a bottom bracket?

 

[brockstar]

Dogfishhead makes a 120min IPA. Comes at about a dollar an ounce at the bar.

I sampled some over the weekend. All I can say is make sure you're sitting down.. Its a big beer! Dogfishhead is good brew.

 

[nate379]

No so much stripping but the threads rusting up and needing to be cleaned up. They are the fuse wells on bombs. Mk-82, Mk-84, BLU-109, etc.

Have a problem with those stripping out often? 3

 

[-B-]

What's a bottom bracket?

The bottom bracket id the bearing system that transmits the power of the crank to the chain which turns the real wheel. ...... hows that for an quick and dirty explanation with pictures


bottom bracket shell attached to the frame

modern out board bearing bottom bracket

 

[Flathead Red]

I have one like that (not exactly the same size), but mine is used to make threads for lathe attachments.

My Big One is used to impress women and make other men feel inadequate!

BAAHAHAHAHAHAHAHHAHAH

I couldn't resist with all the big tool references

Flathead Red

 

[nissan_crawler]

The bottom bracket id the bearing system that transmits the power of the crank to the chain which turns the real wheel. ...... hows that for an quick and dirty explanation with pictures

Ah, thanks. I've had many of them torn apart, never knew that's what they were.