Indexable cutters

Local machine shop tool dealers

Here we have baas cwrod ajrod Rex supply carbide and supply,,etc

Tool reps are helpful when they know what they are doing alot of them are trainees also that will screw your order up or don't know tool applications to help find you what you need

It's hit and miss sometimes but after a while you learn who you can trust
Msc is a big one that you can buy online

You get what you pay for in tool quality grade
 
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Back when I had my desktop machine bass delivered my 2flute 1/8 stub endmills to my house as it was on the route, I'd only buy 2 to 5 a time, usually 4-6 bucks each
 
I have the Harbor Freight 1/2" holder set, and am very happy with them. They are just as good as any others I've seen for more money.
Dave
 
I have the Harbor Freight 1/2" holder set, and am very happy with them. They are just as good as any others I've seen for more money.
Dave

So do I, 3 sets. I use tooling on 3 lathes. 1 lathe is a 7", one is a 12" and one is a 13". I have the tool post on the 12" shimmed higher so that I can swap the tool holders between the 12 and 13 without re-adjustment.

Dick
 
I prefer the name brand tool holders from the makers of the inserts.
My favourite for home is either Kyocera from Korea, or Mitsubishi from Japan.
My most used inserts are the DCMT11T30404 H1, an Aluminium insert that is ground.
The other is the TNMG160404 . These are very sharp inserts suiteable for cutting wood and Ali. The TNMG insert I use is for cutting stainless steels, but is equally good cutting wood and ali. I find that the genuine holders to be a better build quality over the cheaper ones. Especially in the long term and with consistency. I buy the highest tolerance inserts I can buy and the style with the greatest range of grades and cutting geometries. That way I can have a few holders with a big variety of inserts if needed. Sticking with the slightly bigger and more common in industry sized insets gets to be cheaper in the long run. Some a box of 10 inserts is only like $60 or so for a total of 60 insert edges. That's only $1 per cutting edge. Some are a lot more though, like $160 for a box of 10 inserts with only 20 cutting edges. Finding the right grade for what you are doing becomes a lot cheaper in the long run. The diamond(PCD) inserts are very expensive almost no matter what brand and style.
Neil
 
The Harbor Freight set is garbage. I just bought it, just to see. I took 2 light cuts in Delrin and the screw snapped off. Not surprised it comes with a handful of replacement screws.

I found some quality tools that I ordered and should be here next week.
 
The Harbor Freight set is garbage. I just bought it, just to see. I took 2 light cuts in Delrin and the screw snapped off. Not surprised it comes with a handful of replacement screws.

I found some quality tools that I ordered and should be here next week.

I have 2 sets of the 1/4" holders, and one of the 1/2" holders and can say with all confidence, I've cut phenolic, G10, steel, stainless steel, brass, aluminum, Delrin, every ferrule material from Atlas, and a shit ton of wood, and not had a screw break. Maybe I've been lucky, or you had a bad item, or the screw wasn't tightened properly before cutting, don't know, but for what it's worth, their cutting inserts aren't great, but replacing them with good ones, they fit just right with no issues. Also the 3/8" holders I bought years ago from Enco came with a lot of replacement screws also.....so...does that mean they are garbage also???
Dave
 
I have 2 sets of the 1/4" holders, and one of the 1/2" holders and can say with all confidence, I've cut phenolic, G10, steel, stainless steel, brass, aluminum, Delrin, every ferrule material from Atlas, and a shit ton of wood, and not had a screw break. Maybe I've been lucky, or you had a bad item, or the screw wasn't tightened properly before cutting, don't know, but for what it's worth, their cutting inserts aren't great, but replacing them with good ones, they fit just right with no issues. Also the 3/8" holders I bought years ago from Enco came with a lot of replacement screws also.....so...does that mean they are garbage also???
Dave

I don't know. Did the Enco ones snap on their second cut in plastic too?

They don't even have 1/2" holders anymore. Have you considered that their current product is different from their previous product? The insert fits very poorly on the holder, allowing the insert to move and snap the screw. I'm sure they accidentally get it right once in a while. I checked every one in my set, and none fit well enough to be usable.
 
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http://www.carbideanddiamondtooling...C.STFC.STFP.STGC.STGP.STJC.STNC.TC_TTP_Insert

#51700 (STJC style with a 3 degree negative lead angle).

Just tried it today with the inserts everyone is talking about. Specifically, this one:

http://hqtinc.com/carbideinserttcgt2151-akh01s.aspx

It's the bee's knees. Slices through everything perfectly.

I also picked up this parting tool and holder from Little Machine Shop:
http://littlemachineshop.com/products/product_view.php?ProductID=1728
http://littlemachineshop.com/products/product_view.php?ProductID=1551

which fits the quick change holder just fine. And while we're at it, I pickup up this boring bar from McMaster Carr:

http://www.mcmaster.com/#catalog/122/2530/=12r73v8
#3301a91

.28" min bore size and 3.38" bore depth. It's solid carbide and just right for boring for a 3/8-10 pin.

Anyhow, I just wanted to share what I ended up with. Pretty much, those 3 tools + the 3/8" and Mini boring bars from Chris are the only tools I've really been using. I do keep one of the cheapy parting tools around that I only use for trimming tips, and I keep it very sharp all the time, but no reason I couldn't use the other parting tool instead. To get the mini boring bar to fit well in the quick change holder I broke off a length of hacksaw blade and used it as a spacer (gets the bolts over the center of the tiny little boring bar.

What's nice is once you indicate the quick change post off the new parting tool (the only thing that needs to be absolutely dead straight), all of the other tools work properly without needing to constantly change the angles like you typically do with the HSS shop ground tools.

Hopefully someone more experienced will weight in with better ideas/suggestions, but this is working very well for me at the moment.
 
I have 2 sets of the 1/4" holders, and one of the 1/2" holders and can say with all confidence, I've cut phenolic, G10, steel, stainless steel, brass, aluminum, Delrin, every ferrule material from Atlas, and a shit ton of wood, and not had a screw break. Maybe I've been lucky, or you had a bad item, or the screw wasn't tightened properly before cutting, don't know, but for what it's worth, their cutting inserts aren't great, but replacing them with good ones, they fit just right with no issues. Also the 3/8" holders I bought years ago from Enco came with a lot of replacement screws also.....so...does that mean they are garbage also???
Dave

For what it's worth, I tried to return the HF set, but they wanted me to sign up for newsletters and things like that, so I just said screw it and kept them. I figured I'd find a way to make them useful for something.

When I drilled out the broken screw, what I found was that the holes were not deburred well. Maybe they missed a chamfering step? I don't know. All of them were like that. It's a tiny burr, but it's more than enough to keep the insert from seating. After I deburred them, the inserts still don't fit as nicely as they do in the holder I linked to, but they do seem to fit well enough to be usable.

Anyhow, I just wanted to follow up with what I found. Maybe it will help someone that has a similar issue. It's nice having the different tools and just paying couple of bucks for them. :)
 
For what it's worth, I tried to return the HF set, but they wanted me to sign up for newsletters and things like that, so I just said screw it and kept them. I figured I'd find a way to make them useful for something.

When I drilled out the broken screw, what I found was that the holes were not deburred well. Maybe they missed a chamfering step? I don't know. All of them were like that. It's a tiny burr, but it's more than enough to keep the insert from seating. After I deburred them, the inserts still don't fit as nicely as they do in the holder I linked to, but they do seem to fit well enough to be usable.

Anyhow, I just wanted to follow up with what I found. Maybe it will help someone that has a similar issue. It's nice having the different tools and just paying couple of bucks for them. :)

So just so I'm sure I have this right, you were able to use the inserts you linked on the 1/4" tool holders you bought from Harbor Freight? I've never been sure if these 3/8" inserts would fit or not. I have a set that are several years old and do not have the troubles you describe.
 
So just so I'm sure I have this right, you were able to use the inserts you linked on the 1/4" tool holders you bought from Harbor Freight? I've never been sure if these 3/8" inserts would fit or not. I have a set that are several years old and do not have the troubles you describe.

I haven't tried the new inserts in the HF tool holders, but that should be the correct size insert, assuming they haven't done some other stupid thing that keeps them from fitting. The insert I linked to is very sharp and will cut wood much better than the stock HF insert.
 
I haven't tried the new inserts in the HF tool holders, but that should be the correct size insert, assuming they haven't done some other stupid thing that keeps them from fitting. The insert I linked to is very sharp and will cut wood much better than the stock HF insert.

Sounds like you are all set but if your still looking for a good holder give these a look, they are made very good IMO.

http://www.shars.com/3-8-indexable-carbide-turning-tool-set
 
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