Anyone have an idea where to get a good 1/4" X 20NC die for cutting threads? I know most of the high carbon steel ones out of hardware stores are cheaper ones that wont last but after spending over $40 on a supposedly "good" Morse (HSS) I have better luck buying a cheap one use it a few times and then buy another one. Not cheap to do either. The $40 one has cut maybe one decent strip of threads out of the 6 times Ive used it. Ive gotten better threads from a using a $3.00 one. Been using Mobil cutting oil. Any ideas where to get a good one?
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- Thread starter Alan K
- Start date
Traditional Farmer
Well-known Member
- Location
- Virginia
Go on ebay and find a Greenfield
waltdavies
Member
What are you cutting these threads in. Maybe you need to go to a carbide die.
Walt
Walt
dr sportster
Well-known Member
Then keep buying the 3 dollar ones.
dr sportster
Well-known Member
Well I'm thinkin' on the 40 dollar one you may have gotten ripped -off. Just stick to the better brand names. I have threaded Stainless rods with the cheap hardware store brands but after a few inches of thread it was worn out. I was recently way overcharged for two items at a Fastenal store. It must be more for contractors that don't check pricing.
GeneMO
Well-known Member
- Location
- Pilot Grove, Mo.
Craftsman?? I have a complete set of craftsman tap and dies that we bought in 1976. Used the heck out of them for years when I was farming more. Still in good shape. Never worn one out yet.
GeneMO
Well-known Member
- Location
- Pilot Grove, Mo.
What about your lubricant? We always used hog lard when cutting threads. Or drilling holes with a drill press. Best lubricant known to mankind!!!
Gene
Gene
Steve@Advance
Well-known Member
Might consider a different material, maybe 4140 or 41L40, a little harder, but machines better. Cold roll tends to tear when machined, hard to get a decent finish.
dr sportster
Well-known Member
Why is that metal like that ? Same thing in Lowes the steel is hard as a rock. Lowes put every hardware out but can't even supply a grade 8 bolt in 3/8s inch.
Russ from MN
Well-known Member
- Location
- Bemidji MN
We used to use cold rolled steel when threading was required.
johndeere720GA
Member
I found these dies on MSC Direct they are called chromium (it is the element added to steel to make HSS so these may have a higher chromium content.) They are certainly proud of them.
Link to Chromium dies on MSC Direct
Link to Chromium dies on MSC Direct
Anonymous-0
Well-known Member
I think a lot of the problem relates to the steel we get today, especially from recycled steel. Good virgin steel is the best, but expensive. Just cut a piece of cheap new mild steel with a hack saw and you hit spots that are so hard the hack saw won't cut it, or quickly dulls the blade. I use some older used steel rod on some projects and it usually cuts great.
Anonymous-0
Well-known Member
I buy the cheap ones and use Tap Magic. Believe Tap Magic won't work with aluminum but makes a cheap die cut like butter on steel/cast. Stainless is quite a bit tougher but also works. Just don't do much with stainless
Donald Lehman
Well-known Member
I have experienced that threads are much harder to cut on todays steel also. Can you get those dies sharpened or are they getting beat up so bad they can't be sharpened? The machinist/mechanic that used to work for my father sharpened his own. Don't know how he did it though. The bugger wouldn't show me how, either.
waltdavies
Member
You can't sharpen taps or dies it makes the cut smaller thus they won't fit the nuts or bolts
Walt
Walt
Robert Major
Well-known Member
I'd have to agree there it sure makes the poop slip outta the hogs here, if they cough at the wrong time L.O.L !
Sorry just couldn't resist that after reading your comment.
Regards Robert
Sorry just couldn't resist that after reading your comment.
Regards Robert
(quoted from post at 18:59:04 06/19/14) You can't sharpen taps or dies it makes the cut smaller thus they won't fit the nuts or bolts
Walt
Yes, you can sharpen them. But it has to be done right and there are limits. It's just not commonly done anymore.
Up until my retirement, from the railroad, we
mechanics/Machinists could but tools, through the
company at company cost, so, most of my tools are
Snap-On...tap and Die sets as well. I've never had
any problem! Cost was about 60% LESS than tool truck prices. BNSF purchased LOTS of tools and got
good discounts.
Once, about the year 2000, we got a new foreman
that didn't see any reason for keeping old taps
and dies, from the Great Northern, and Northern
Pacific Steam engine shops, around anymore, so
he tossed many pounds of it in the scrap metal
dumpster. I and other machinists were sure glad
to get those old sets, up to 1-1/4, and 1-1/2,
fine and coarse threads...good old American
brands not made anymore. And when the Railroad
needed ones, they had to buy new ones, that
weren't as good!
mechanics/Machinists could but tools, through the
company at company cost, so, most of my tools are
Snap-On...tap and Die sets as well. I've never had
any problem! Cost was about 60% LESS than tool truck prices. BNSF purchased LOTS of tools and got
good discounts.
Once, about the year 2000, we got a new foreman
that didn't see any reason for keeping old taps
and dies, from the Great Northern, and Northern
Pacific Steam engine shops, around anymore, so
he tossed many pounds of it in the scrap metal
dumpster. I and other machinists were sure glad
to get those old sets, up to 1-1/4, and 1-1/2,
fine and coarse threads...good old American
brands not made anymore. And when the Railroad
needed ones, they had to buy new ones, that
weren't as good!
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