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-   -   Need Quality Tap 1/2" NPT, Thermometer Install (http://www.bbq-brethren.com/forum/showthread.php?t=159741)

Faston 04-28-2013 08:14 PM

Need Quality Tap 1/2" NPT, Thermometer Install
 
I need a high quality NPT 1/2"-14 TPI tap to cut new threads in two locations on 1/4" plate. I want the holes threaded so I screw in a pipe plug later if desired. I already have a Harbor Freight tap that can barely chase threads let alone cut new threads. I should have known better...

Suggestions for a reasonably priced quality tap greatly would be greatly appreciated. High speed steel would be very nice. :)

martyleach 04-28-2013 08:17 PM

Sorry, but I wish I could recommend one to you. I have broken every tap I have bought. They work about one time and then break...

IamMadMan 04-28-2013 08:19 PM

Quote:

Originally Posted by Faston (Post 2463629)
I need a high quality NPT 1/2"-14 TPI tap to cut new threads in two locations on 1/4" plate. I want the holes threaded so I screw in a pipe plug later if desired. I already have a Harbor Freight tap that can barely chase threads let alone cut new threads. I should have known better...

Suggestions for a reasonably priced quality tap greatly would be greatly appreciated. High speed steel would be very nice. :)

If you have a plumber or machinist as a friend ask to borrow thiers, otherwise check the tool department at Home Depot.

Yellowhair42 04-28-2013 08:21 PM

Any tap not from Horrible Fright is good.You get what you pay for.Make sure to use the right size drill and plenty of lube.

alane 04-28-2013 08:44 PM

The other options is to drill a hole and weld a half coupling on instead.

Faston 04-28-2013 09:51 PM

Thanks Guys,

Unfortunately I don't know anyone locally that might have a good tap I could borrow. I'll check out the local stores and see what I might find. One thing about buying from Home Depot is that they will take it back if it doesn't cut. I'll just have to be be patient to get it right.

In the mean time I'll use my cheap grate thermometers.

First attempt at pulled pork tomorrow!!

BigBellyBBQ 04-29-2013 02:42 AM

MSC, Enco, ManHatten Tool Suypply or McMaster Carr is where I buy the majority of shop supplies, or if need right away, a contractors supply house that sells over the counter will have a quaility tap. Use the recomended tapping fluid for what you are doing, if ordering from above, get kool tool or tap magic...they both work great..

Fishhook 04-29-2013 05:58 AM

Only try to cut about 1/4 turn each time before you back the tap and clear the chips. Use plenty of oil, your taps should last for yrs. Also be sure to start with the proper size hole. Auto parts stores usually have some taps on hand..

dadsr4 04-29-2013 07:25 AM

Quote:

Originally Posted by Fishhook (Post 2463951)
Only try to cut about 1/4 turn each time before you back the tap and clear the chips. Use plenty of oil, your taps should last for yrs. Also be sure to start with the proper size hole. Auto parts stores usually have some taps on hand..

This. I have taps that have lasted for over a decade - non-professional use.

markdtn 04-29-2013 07:40 AM

Try a good auto parts store like NAPA. Also WW Grainger or a good local hardware or plumbing store. We are not talking a lot of money for a quality piece. Harbor Freight is not the best place to buy stuff that you expect precision and longevity.

jonboy 04-29-2013 07:49 AM

Quote:

The other options is to drill a hole and weld a half coupling on
This sounds like a good option, esp if you are installing more than one thermometer.
jon

jestridge 04-29-2013 08:02 AM

best option is above, that the only way

J-Rod 04-29-2013 08:19 AM

Quote:

Originally Posted by Fishhook (Post 2463951)
Only try to cut about 1/4 turn each time before you back the tap and clear the chips. Use plenty of oil, your taps should last for yrs. Also be sure to start with the proper size hole. Auto parts stores usually have some taps on hand..

This!^^^ So often they are used incorrectly. Not saying the OP was, but good you brought it up. And the smaller the tap, the slower, gentler you're approach must be. To quote Gordon Ramsay, "Make love to it, don't fark it!"

Will work for bbq 04-29-2013 09:05 AM

Pipe taps are pricey, if you can weld consider a 12555K83 tank flange. http://www.mcmaster.com/#tank-flanges/=mj5vcp

el_matt 04-29-2013 11:47 AM

I have my buddys Snap-On tap and die set on permanent loan. Best taps and dies I've used.

Matt


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