Myford Lathe Tool Inserts

[Barnabas TaylorParticipant @barnabastaylor89961]

Hey guys, I have got one insert tool, a myford one I inherited with the lathe. I want to buy some more tips for it but was wondering if there was a cheaper option than the ones on the myford website? I know they are pretty good value really, 6 tips to an insert but I have found that if you chip them, you tend to damage the tip you were using and the one below it so you can only get three tips out of an insert sometimes.

[Barnabas TaylorParticipant @barnabastaylor89961]

Just trying to save a bit of money…

[John HaineParticipant @johnhaine32865]

Try these people.

**LINK**

May not have the exact Myford type but sell industry standard tips and holders at good prices. Very helpful too, call to ask if they have the exact equivalent.

[Brian WoodParticipant @brianwood45127]

I'll endorse that, I've been using their tips for years

Brian

[John RuddParticipant @johnrudd16576]

Another vote for JB, very helpful people….

I bought the wrong parting tool for my lathe and they swapped it out without any problem….

[David Standing 1Participant @davidstanding1]

As an alternative, I buy all my inserts off eBay.

I stick to genuine quality inserts, Seco, Sandvik, Kennametal etc, I only buy off UK sellers, and tend to buy part boxes or oddments.

This way I tend to pay somewhere between £2 to £3 each – for quality inserts, not unbranded Chinese stuff.

And to Barnabus, your original post, I am confused by 'six tips to an insert' – what tips are these?

[JasonBModerator @jasonb]

The insert in question

[VicParticipant @vic]

Posted by JasonB on 28/04/2018 10:08:32:

The insert in question

That’s a strange looking insert, not seen one of those before.

[David Standing 1Participant @davidstanding1]

Ah, ok, thanks Jason.

Three of those sides would have very limited application!

[Brian WoodParticipant @brianwood45127]

Unless it is duplicated on the other face, then you have a proper six sided insert.

Brian

[JasonBModerator @jasonb]

Yes bit of a limited application insert. Would probably be better off keeping the holder and getting some more useful WNMG inserts and if you were willing to take pot luck you could have a whole box for the cost of one of the Myfordones.

Not quite sure of the exact code for the ones shown WN**, I have a couple of similar ground ones in other shapes that I came by and have never used.

[duncan webster 1Participant @duncanwebster1]

If using on a ML7 or Super7 then you can get just as good results using High Speed Steel. It's not that hard to grind the tools, 8mm sq is plenty big enough, and if you lose the edge you just touch it up, costs very little at all. I now have a tangential toolholder, absolutely magic

**LINK**

Not cheap, but at nearly £2 an edge for tips it soon pays for itself, and it wouldn't be too difficult to make one, plenty of articles on the interweb

[Bob StevensonParticipant @bobstevenson13909]

This kind of insert was last used by industry about 30 years back and, essentially, failed to find favour due to being both expensive and not very hard wearing. I 'know' it as PM2 but this is probably not correct. Strangely enough I recently cut down one of the holders to use this insert straight on the top slide of my new WM180 (my new 'house' lathe) hoping for vastly reduced flexing and superior finish but it performed only adequately and not as good as decent home ground HSS. About 20 years back I saw a great pile of these complete with 6''x1'' tool holders at the Enfield Pagent auto jumble selling at 50 pence each.

I suspect that the WM180 can't turn fast enough or make deep enough cuts to get quality from these older designed inserts.

[VicParticipant @vic]

Posted by duncan webster on 28/04/2018 12:35:59:

I now have a tangential toolholder, absolutely magic

**LINK**

Not cheap, but at nearly £2 an edge for tips it soon pays for itself, and it wouldn't be too difficult to make one, plenty of articles on the interweb

Agreed. I have several Tangential tools including a couple I made myself. Very cheap to run on small bits of HSS and I’ve even used carbide rod in the commercial holder for hard materials. Well worth spending the time to make up a little height block as well. It then takes seconds to accurately set it to centre height.

[Bob StevensonParticipant @bobstevenson13909]

I've been wondering about tangential holders….But, what stops the tool bit from steadily dropping due to turning forces?…is there not a need to keep readjusting the tool height? The two locking screws hardly look up to the job! Are there any tangentiall holders with a wedge or similar UNDER the tool bit?

[SamsarandaParticipant @samsaranda]

Duncan, I bought the tangential tool featured in your link and found it brilliant.

Bob, toolbit creep doesn’t appear to be a problem, have taken some hefty cuts with mine and the toolbit has been rock steady with no movement.

Dave W.

[VicParticipant @vic]

I’ve never noticed any movement, even with interrupted cuts.

[duncan webster 1Participant @duncanwebster1]

I've had the tool pushed down when things have gone wrong, but that's a bonus, nothing breaks and the depth of cut is reduced.

You can also put round bits in it for machining radii, only a very limited range granted. I've never tried the screwcutting feature

Edited By duncan webster on 28/04/2018 14:16:58

[mechman48Participant @mechman48]

I have a tangential tool holder bought from eccentric engineering ( usual disclaimer ) which I use for most of my work, I've never yet had the tool bit push down or slip in the holder even on interrupted cutting. looking at the tip you show I'll bet it's a two sided tip, 3 edges ea. on top & bottom.

​George.

[davebParticipant @daveb17630]

Posted by mechman48 on 28/04/2018 18:06:57:

looking at the tip you show I'll bet it's a two sided tip, 3 edges ea. on top & bottom.

​George.

Indeed it is! I have a Myford holder to fit the patent rocking shoe. The tips are straight edged, they sit at an angle in the holder to provide front relief.

[Niels AbildgaardParticipant @nielsabildgaard33719]

I have made two tangential toolholders for my friends Myford.

6 hours work.

The cutting tools are sticks of best german carbide(from China) 2mm square/ 3mm dia  ca 50mm long.

The round is peanuts and the square is around 8£ and gives about 150 sharp corners.

Each regrind is less than 3 minutes

 

**LINK**

 

**LINK**

 

My friend uses nothing else today

and price per corner will be hard to beat

Edited By Niels Abildgaard on 29/04/2018 05:33:31

Edited By Niels Abildgaard on 29/04/2018 05:34:41

[Howard LewisParticipant @howardlewis46836]

I made a tangential toolholder to one of the designs published in MEW. It worked so well that I made one for 5/16" HSS toolbits. It is so good that it sees a lot of use, for Facing or Turning without any restting.

(A holder for the unused 100 degree corners of CCMT0604 bits is used for roughing) The 5/16" bit seems to cope quite happily with anything from a 0.050" cut to a 0.0005", and with a feed rate of 0.0023"/rev gives a good surface finish.

And, unlike carbide tips does not chip and is easy to sharpen. No problems with the bit being pushed down. Easy to set tool to a home made centre height gauge.

SO impressed that I even wonder about buying the Eccentric Engineering product, to see if it is even better!

Other members of our M E club have made them, and been so pleased that they have made Left Handed versions.

My use of carbide tips has greatly decreased, so may provide a financial justification for the commercial product.

Howard

[MeunierParticipant @meunier]

Barnabas, I have the same Myford holder/tips bought from Moles of Watford some forty-odd yrs ago and find they work well. I bought spare tips from Jurassic Tools online. Will try to locate the spare tips box shortly to find a tip number (in process of preparing to move house).
DaveD

[Barnabas TaylorParticipant @barnabastaylor89961]

Hey guys, I never expected such a wonderful set of responses! Thank you all for your help. It seems like the basic advice is get an new tool, probably wise! I prefer HSS for my day to day work because it is much easier to alter and touch up as and when I need to. I keep the tipped tool for the tougher stuff, probably why I break the tips as the shape is quite delicate. I have got a tangential holder, one where the tool bit is arranged at an angle to the horizontal rather than the vertical. However, it doesn't fit in my Myford QCTP so I need to file/grind/mill away some of the shank. I hadn't thought about getting carbide bits for it to make it easier to cut tough stuff, probably a good plan! Can anyone point to the MEW articles that cover making tool holders as mentioned above? Would be a nice project and help me practice my skills!

If the tip number is forthcoming I would be grateful because I don't want to bin the holder for the sake of a tip or two…

Thanks again to everybody for your help.

[MeunierParticipant @meunier]

Found then, surprisingly – the holder is marked "Myford…MUR…12R…90" and the tips box is marked
Hoybide P01R CW/M30. A google search found only the L/H version from
http://www.ebay.co.uk/itm/Hoybide-P1-L-CW-M30-Carbide-Inserts-Tips-Qty-9-Believed-To-Be-Unused/362145992349?hash=item5451954e9d:g:zFoAAOSwONBZCvpa

Might be worthwhile calling Jurassic Tools and using the tip reference from my box.
I tried – and failed – to make it a Link
DaveD

[Author]

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