Author Topic: Interesting bottom tap  (Read 993 times)

Online steamer

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Interesting bottom tap
« on: January 11, 2019, 09:47:36 PM »
Ordered up a new bottom tap for the Wallaby...from Travers tool.    It got delivered today.   Great!    Took it out of the package and tried to start it in a 1/2-20 hole, and not even close to starting...I say hmmmm, my taper tap is old and hand resharpened, I'll got down the road and get a new taper and plug tap.   

The local supplier was cheaper than the Travers web store, and with what turned out to be far better quality.   When I got back, I put the plug tap in, no problem.    I then tried the new Travers tool bottom tap...NO GO.    hmmmmm  Why does it look bigger than the the other two?

I read the label etched on the side of the tap.   1/2-20 H3 4fl  Btm.    The plastic package is marked that as well...  OK....then I measure it.   It measures 0.562"   ! :hammerbash: :zap:...more like 9/16-20!

I'm buying my taps local from now on if at all possible!!!

Travers is going to give me a refund....I'll let you know how that works out..


Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline Neil-Lickfold

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Re: Interesting bottom tap
« Reply #1 on: January 11, 2019, 10:34:42 PM »
I really needed a good laugh today and you provided it.
H3 taps are a very good  tolerance range too.
I have never had issues with the Travers company, but clearly something was not right.
Oneday that 9/16 20 tap will come in handy.
If you decide not to want to keep it, I will be happy to buy it off you.
I have a need to a similar thread size and pitch  range. Was looking at M14 X 1.25mm pitch
but 9/16-20 will work just as well.
PM me for my address details and I can PayPal you for it.
Neil Lickfold

Online b.lindsey

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Re: Interesting bottom tap
« Reply #2 on: January 11, 2019, 11:03:15 PM »
Well that sucks, just a case of misidentification I suppose. Travers is a reputable company though and should make it good with no hassle. 

Bill

Online steamer

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Re: Interesting bottom tap
« Reply #3 on: January 11, 2019, 11:08:22 PM »
I really needed a good laugh today and you provided it.
H3 taps are a very good  tolerance range too.
I have never had issues with the Travers company, but clearly something was not right.
Oneday that 9/16 20 tap will come in handy.
If you decide not to want to keep it, I will be happy to buy it off you.
I have a need to a similar thread size and pitch  range. Was looking at M14 X 1.25mm pitch
but 9/16-20 will work just as well.
PM me for my address details and I can PayPal you for it.
Neil Lickfold

Yeah I'm sitting here moiling that one over my self.   I have a big selection of taps, but not a 9/16-20....so I may keep it after all...after I relabel it!!!

Dave

"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline kvom

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Re: Interesting bottom tap
« Reply #4 on: January 12, 2019, 11:55:46 AM »
I usually get my bottom taps by grinding off the tip of a plug tap.   :naughty:

Offline BillTodd

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Re: Interesting bottom tap
« Reply #5 on: January 12, 2019, 02:01:35 PM »
Could be for plated or anodised threads.
Bill
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Offline dieselpilot

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Re: Interesting bottom tap
« Reply #6 on: January 13, 2019, 03:59:35 PM »
What make is the tap? Doesn't Traverse just sell them? Recently I saw a post someone got a tap that had right hand threads, but left hand cutting geometry.

Online steamer

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Re: Interesting bottom tap
« Reply #7 on: January 13, 2019, 04:16:07 PM »
What make is the tap? Doesn't Traverse just sell them? Recently I saw a post someone got a tap that had right hand threads, but left hand cutting geometry.

Regal cutting tools out of the US.

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline dieselpilot

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Re: Interesting bottom tap
« Reply #8 on: January 13, 2019, 04:29:55 PM »
Mistakes happen.