NewLondon88
Local Chapter Leader
5C? You must have some big iron..
Question about threading
- Thread starter NewLondon88
- Start date
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workinforwood
Member
My machine is only 12x30. with that new collet chuck on there, it looks like a turbine. James Keenan built the chuck set up for me. I know that the 3 jaw chuck is just as good as collets, but I am afraid of the spinning fingers. I am used to working with collets. I bought an entire set of collets cheap and also have a bunch of 5c collet expanders so I can grab inside small parts. It's a cool chuck too, it does not use a draw bar. You just turn a nut with a T bar and it pulls the collet in. Someday soon I'll figure out how to mount a cutter into the tool rest...I still have no idea what most of the cutters I have are for.
NewLondon88
Local Chapter Leader
it's too bad I read this now. I just gave away about two dozen 5C collets I
picked up at a yard sale. Most were unused, some were the type you customize
yourself.
picked up at a yard sale. Most were unused, some were the type you customize
yourself.
JeffinWIS
Member
Jeff, the bottom tool looks to be a grooving or cutoff tool…would take a better pic to verify. The next tool does appear to be a threading tool…double ended 60* insert? Check the angle with a "fishtail". The next one is the more-or-less industry standard turning/facing tool with an 80* diamond insert? The 5* negative lead angle on the front and side allow turning to a square shoulder or facing down to another diameter. The next tool is just the opposite hand for turning toward the tailstock or facing on the headstock end of a part. You can also put this tool on the from side of your toolpost/parallel to the "ways" and use it like the previous tool. The next tool, with the square insert, can be used to turn where you're not going up to a shoulder, although it's likely marketed for 45* chamfering…that's what I would use it for. The next tool is mostly useless, IMHO. It's supposed to be a rough turning tool…again, it won't go to a square shoulder, but the idea is to allow you to use the 100* corners form the "regular" turning/facing tool. You could set it at an angle and be able to do some facing with it. The last tool is a boring bar. It will be okay for larger diameter and shallow bores only. Are you using a 4-way tool post or a quick-change tool post?
workinforwood
Member
Thanks Jeff. And yes, I have a quick change tool post. I saw the site for the micro size inside threading tools too...that's great stuff and just a few hours down the road too.
JeffinWIS
Member
Jeff, if those are negative rake holders, they may cause some grief on a smallish lathe. The positive rake, triangle insert type tools cut much easier. As an example, I use this tool for 99% of turning and facing cuts on an old 13" SBL.
http://www.nationalsupplysource.com...r+Carbide+Inserts &type=False&specs=True
http://www.nationalsupplysource.com...r+Carbide+Inserts &type=False&specs=True