On 2/17/2017 11:28 AM, Jack wrote:
On 2/16/2017 12:31 PM, wrote:
On Thu, 16 Feb 2017 11:43:15 -0500, Jack wrote:

On 2/14/2017 10:32 PM, woodchucker wrote:
On 2/14/2017 9:04 PM, Spalted Walt wrote:
.. just got a *lot* more expensive.

The taps:
https://thewoodwhispererguild.com/pr...ategory/tools/

The announcement:
https://www.youtube.com/watch?v=QC6p5SSUSW4

The Testing:
https://www.youtube.com/watch?v=EA-CmUvIsjg

http://www.pdfbooksworld.com/image/c...68-390x550.jpg

I hope they sell a million sets.

Go ahead and buy them, I'll continue to use regular metal taps, which
work quite well. I never spin a shank, like he (I'll bet falsely
claimed
he did) . The hex shank is a negative. I would rather have a square for
use in regular tap wrench if I decided to hand tap. The shanks are nice
and long. and it looks like a quality tap. But I can buy the highest
quality long reach metal taps for much less.
So I'm sure they'll sell, just not to me.

Me neither. It was relatively recently in my woodworking "career" that
I discovered how strong wood could hold up with regular machine screw
threads. I had read about it, but didn't fully believe it until I tried
it. I think they often work better than threaded inserts they sell at
the borgs.

How can that be? Threaded inserts are, well, threaded into the wood,
after all.

(Posted at end of numerous lines of extraneous text to conform to
ignorance level of previous poster[s])

Threaded inserts are generally very short, with a few course threads,
making them unstable and weak, while a tapped hole is the length of the
screw and very stable. It's also easy to tap a hole in wood, just using
a small tail-less drill and the tap.

Actually, some threaded inserts may be very short and have only a few
coarse threads.
Threaded inserts with coarse threads are generally intended to be used
in soft woods and plywood. A bolt and or screw does not thread well
into soft woods or plywood and last with repeated assembly and disassembles.
I buy these things 20~50 at a time in lengths up to 1.25" long and they
receive, in my case, 5/16" bolts. And FWIW I have never had one fail.
I used 8 inserts and 8, 5/16"bolts to hold a commercial airplane display
together. This display is used all around the world and is disassembled
and reassembled for each convention that it is used at. I have been
told that this display had been taken apart and reassembled about once a
month for the past 4 years.

Naturally if you use the wrong part for a particular application it is
likely to fail. By the same token if I had simply threaded the display
with a tap and not use a threaded insert and bolted it together it would
not have held up with 50 plus cycles.