Lathe Tools

[John ReeseParticipant @johnreese12848]

I have a South Bend 10K. For years I have used carbide insert tools. I was seldom satisfied with the finish and with carbide it was difficult to sneak up on a dimension. I recently made up a tangential tool holder for HSS. The finish I got was amazing and could easily take a half thou cut. I highly recommend tangential tools. You will want to make up a number of HSS tools to fit your toolpost. The South Bend was originally set up with a lantern toolpost with a rocker. The tool holders held the bit at a 15 deg. angle so it provided back rake as well as the side rake that is ground into the bit. Steel and aluminum cut much more freely with both back and side rake. When you mount a bit horizontally in the toolpost you have only side rake. The tangential tool provides both side and back rake so the tool is very free cutting. I hope this helps.

[Curtis RutterParticipant @curtisrutter61973]

I think that makes sense…sorry newbie, will look into it!

[Curtis RutterParticipant @curtisrutter61973]

Ahhhh I see      https://youtu.be/xUAPrkC7Q-Q

 

Edited By Curtis Rutter on 14/01/2017 18:16:50

[VicParticipant @vic]

These are very good.

**LINK**

Lots of folks on here have them, or their own home made versions.

[Roderick JenkinsParticipant @roderickjenkins93242]

Maximum tool size depends on the tool holder. If you are using the simple clamp to the top slide then 12mm (1/2" ) will be fine. If you use a 4 way toolpost or a Dickson type quick change toolpost then 10mm (3/8" ) will give you a better chance of bringing the tool tip down to centre height. With some replaceable tip carbide tooling, even 10mm can be too big. On a Myford type lathe I am not convinced that larger size tools offers any significant advantage except for boring bars where the biggest (i.e. stiffest) tool you can fit in the hole offers the best chance.

HTH,

Rod

Edited By Roderick Jenkins on 14/01/2017 19:09:38

[MWParticipant @mw27036]

I have to say some of myford's HSS 8% cobalt tooling looks very finely finished, and the price is decent too.

[peak4Participant @peak4]

Don’t worry about replying to this very old thread, I’m just rejuvenating it to try something out.

Unfortunately the Diamond toolholder is no longer retailed in the UK, but is still available from Australia (I Think)

Bill

[Vic]

On Vic Said:

Also click the ad on the right ” Eccentric Engineering”.

But not if you’re in a hurry. I’m still waiting for my order from them 6 weeks later! (to be fair, don’t think its their fault – shipping and possibly customs seems to be the problem)

Mike

[MW]

On MW Said:

I have to say some of myford’s HSS 8% cobalt tooling looks very finely finished, and the price is decent too.

Just curious to know … Is that Myford’s typo or yours ?

[ 8% in the text, but 10% in the photo ]

MichaelG.

.

Edit:__ Sorry, just realised I was responding to a post from 2017

 

[larry phelan 1Participant @larryphelan1]

Would have to agree with the other Larry !

You dont need a load of fancy tools, HSS will do almost everything you will come across, and it,s cheap and eas to grind for turning, facing, thread cutting ect. Boring bars are easy to make too.

Sparey will not set you too far wrong either, all you need is there.

Good luck with your lathe, have fun making junk, I do it all the time !Hint, buy a big scrapbox, you will need it, ask me how I know !

[duncan webster 1Participant @duncanwebster1]

Beware importing from Aus to UK. You’ll get hit by tax, which is fair enough, but also an obscene handling charge.

[Howard LewisParticipant @howardlewis46836]

Showing bias, I prefer HSS. Thye exact angles are not too votal, IMO, a cpuple of degrees away from spec is not usually ruinous.

I use Tangential tools, a lot of the time. With the jig, only one face to grind, and suitable for turning or facing.

Carbides have their uses, they will cut hardened steel when HSS cannot.

When maching Cast iron, whenever possible, I put a powerful magnet under wher the swarf is likely to fall, and cover it with newspaper (So that it doesn’t get wrapped up in the chuck)

A lot, not all unforunately, of the cast iron dust will be drawn to the magnet, rather than flying everywhere, so that afterwards, the newspaper can be oved, carefully away for the magnet, and the swarf disposed of.

Doesn’t trap all, but most, and makes cleaning up easier.

HTH

Howard

[Author]

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