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^^^^pfft, Delrin's one of the better ones. Try it w UHMW, your hour of deburring would double LOL. There's another Delrin piece where they call out a 0.010 radius on an edge. Uh huh, that's code for "hit it w a needle file and call it good." At least Delrin kind of files, UHMW just kinda bounces off.
 

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Anyone use form taps at home? Not quite as easy to use by hand but a much stronger thread. I like em for the fact there's no chips.
No, I've never once tried form taps. Figured that was impractical for hand use, but apparently not? I'm pretty good at hurriedly reading the charts tho and mistakenly drilling at 60% :D
 

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Anyone use form taps at home? Not quite as easy to use by hand but a much stronger thread. I like em for the fact there's no chips.
I do with the smaller ones like 4-40, and 2-56
Run them by hand with good GL5 hypoid gear lube for oil. They seem to work very well, and at least for 4-40 the drill size is a fractional one rather than a number or letter.
 

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No, I've never once tried form taps. Figured that was impractical for hand use, but apparently not? I'm pretty good at hurriedly reading the charts tho and mistakenly drilling at 60% :D
I'll do up to 3/8-16 in alum by hand. I've done 1/4-20 in steel..it works but it's a workout for your wrists. I like the fact they are solid and less likely to snap, especially if you have an oops and slip or cock the tap. Hole size can be a little F'ed up as well and still get an acceptable tread, unlike cut taps where once the material is gone, it's gone. I like moly based lubes, like Castrol moly-dee, for the steel..plus i like the smell.:p
 

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I had Snap-On taps/dies before I bought the tool truck.

I'm of the opinion that 90% of the problems folks have with taps is due to poor drilling of the hole or poor technique.

I don't break many taps (but when I do, it's a part that the stock was expensive and the work extensive-LOL). I do however dull a lot of taps in the common sizes and for that it's nice to have them replaced under warranty (my Tool truck guy never questions MY warranties-LOL).

If you expect to dull thread cutting tools, the tool truck might be the way to go, but stay off the Harbor-Freight truck or Wal-Mart trucks!
 

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I buy the Mastercraft (Canadian Tire) tap & die sets when they're on sale 50-70% off. I'm covered up to 5/8" & M16, with duplicates of most everything under 1/2" & M12. I know they're chinese stuff, but I get good mileage with responsible use and tapping fluid.

Now I think its safe to lay off and buy just individual taps as I break them. :D
 

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Discussion Starter #27
i ended up buying the irwin 75 piece off the tool truck. my tap set didn't come in time, and i really need to get my steering box tapped. oh well, i got the big one. its just money right?
 

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Where does Irwin fall on the quality scale ?

I bought the Irwin fatty set from Roark supply years ago and they have served me well for occasional use.
 

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Discussion Starter #30
Where does Irwin fall on the quality scale ?

I bought the Irwin fatty set from Roark supply years ago and they have served me well for occasional use.

this is what i'm wondering as well. I won't be using it too frequently, but i'm not exactly close to the tool store either. I'd hate to have a tap break and im SOL for a few days.
 

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4 year old thread bump. Harbor freight $85 set worth a shit? Tool truck $200+ sets worth a shit?
You mean these sets? https://www.harborfreight.com/45-pc-titanium-nitride-coated-alloy-steel-sae-tap-die-set-61411.html

You can get the same sets on eBay for cheaper. I have both metric and SAE. Tap wrench is cast aluminum and QC isn't that great. I broke one of them because there was massive porosity at one of the corners. Tapping hard steels in coarse pitches will wear them out decently quick. Other than that they're great. You can't beat them for the price.
 

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4 year old thread bump. Harbor freight $85 set worth a shit? Tool truck $200+ sets worth a shit?
I've had good luck with them. As said above the die holder and tap wrench aren't that great, but you can get some good steel ones off of e-bay that are way better.

Also these t-handle tap wrenches from HF are actually really good for the smaller taps. I like using that style of wrench over the big t-handle as it gives you a better feel for the smaller taps.
 

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4 year old thread bump. Harbor freight $85 set worth a shit? Tool truck $200+ sets worth a shit?
I use mine quite a bit for repairs, no complaints on them yet.
If I am cutting new threads into something I usually buy something a bit better from MSC or other tooling supply places.
 

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I use mine quite a bit for repairs, no complaints on them yet.
If I am cutting new threads into something I usually buy something a bit better from MSC or other tooling supply places.
Yeah and as I wear them out I will buy multiples of the sizes I use the most and replace the ones in the set with real good ones.

I like spiral point taps. Beefier cross section and seem to cut real well too.
 

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4 year old thread bump. Harbor freight $85 set worth a shit? Tool truck $200+ sets worth a shit?
The tool truck/Irwin sets are complete fucking garbage. I got some eBay, unopened, Snapoff set for cheap and immediately recognized the Irwin machining.

It is night and day difference between Irwin and a quality tap. My bolt supplier brings me Champion and Alfa cutting tools, I'll be replacing the Snappy with them as I break them.
 

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Has anyone else used century taps? I've bought quite a few over the years, and have been pretty satisfied, they are made in japan.
 
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