20 RTO

[maxwell]

Any advice for best RTO tool in 20 bore, thank you.

[Rookandrabbit]

Clay and game make a very good roll turn over tool and it’s east to use in a drill. Hope this helps you if not there are the old handloaders tools which can be bought cheaply at auction but some are a bit rough due to their age. Have fun Rookandrabbit.

[Minky]

F.E.S Folkstone Engineering sell an Italian rto tool Gaep that several people on here have told me is very good.  I  made my own on the lathe.

[maxwell]

23 hours ago, Rookandrabbit said:

Clay and game make a very good roll turn over tool and it’s east to use in a drill. Hope this helps you if not there are the old handloaders tools which can be bought cheaply at auction but some are a bit rough due to their age. Have fun Rookandrabbit.

Thank you 

19 hours ago, Minky said:

F.E.S Folkstone Engineering sell an Italian rto tool Gaep that several people on here have told me is very good.  I  made my own on the lathe.

Thank you

[enfieldspares]

Yes. I know a bit about RTO tools. Although only in 16 and 12 but it still applies. Buy a MODERN made tool that uses a smooth walled tapered or "flared" cup to grip the rim of the case. Avoid old timey tools that either have a two or three prong gripper or where the inside of the cup is ribbed or splined. Both of those old timey types will work, yes, but will mark the case rims. 

For the head, that does the actual roll turnover look for something that has at least two "lumps" to make the turn although with a good made tool one or three lumps will work just as well. What I am trying to say is that a tool with three "lumps" won't make any better roll turnover than a good made one with two lumps.

Get one that the jaws are wide enough to grip the table you'll clamp it to and that won't damage the table. Worst jaws are those that don't have a "cup" or disc on top of the screw. As the screw will go into the wood of the table. The best RTO tools I have owned have all been Italian (I think) make a green painted base with a red painted wooden handle. I do have an original 1920s/1930s Manufrance but it doesn't do a roll turnover any better. In fact in my eyes not as good in fact as the Italian.

But what it does have and I posted here to show is that vital smooth walled tapered or "flared" cup with no ribs or splines.

Manufrance:

A SMOOTH CUP IS BEST...AS ON THIS MODERN ITALIAN TOOL FROM THE 1970s/1980s.

  

Lastly be patient if using eBay these things if you wait can be had for around £20.00. If searching outside the UK the French call such a thing a SERTISSEUR.

Edited December 17, 2021 by enfieldspares

[Minky]

2 hours ago, enfieldspares said:

Yes. I know a bit about RTO tools. Although only in 16 and 12 but it still applies. Buy a MODERN made tool that uses a smooth walled tapered or "flared" cup to grip the rim of the case. Avoid old timey tools that either have a two or three prong gripper or where the inside of the cup is ribbed or splined. Both of those old timey types will work, yes, but will mark the case rims. 

For the head, that does the actual roll turnover look for something that has at least two "lumps" to make the turn although with a good made tool one or three lumps will work just as well. What I am trying to say is that a tool with three "lumps" won't make any better roll turnover than a good made one with two lumps.

Get one that the jaws are wide enough to grip the table you'll clamp it to and that won't damage the table. Worst jaws are those that don't have a "cup" or disc on top of the screw. As the screw will go into the wood of the table. The best RTO tools I have owned have all been Italian (I think) make a green painted base with a red painted wooden handle. I do have an original 1920s/1930s Manufrance but it doesn't do a roll turnover any better. In fact in my eyes not as good in fact as the Italian.

But what it does have and I posted here to show is that vital smooth walled tapered or "flared" cup with no ribs or splines.

Manufrance:

A SMOOTH CUP IS BEST...AS ON THIS MODERN ITALIAN TOOL FROM THE 1970s/1980s.

  

Lastly be patient if using eBay these things if you wait can be had for around £20.00. If searching outside the UK the French call such a thing a SERTISSEUR.

There is a minor problem with that.   The postage is generally double what the item cost is....AND you might be clobbered import VAT along with an admin fee also.    I know this because I got hooked on an import part and I think that on top of the item cost the import VAT on my part was £x and the royal mail admin fee to advise me of the vat was about £9.!  (can't remember exactly) but if you dont pay you don't get the delivery. Rip off again.

Edited December 17, 2021 by Minky

[enfieldspares]

Ah! But you'll see these Italian (?) RTO tools on eBay in the UK and quite cheap as nobody wants them as they aren't vintage, veteran, made whoever or whatever, and have no age patina. The fact they do the job better is neither here nor there apparently as most seem to buy these old ones as conversation pieces not working tools. But yes...ouch...since Brexit stuff from the EU into the UK gets stuffed for VAT and Royal Mail handling.

[DUNKS]

You do take a chance but for the price of it  I bought an old hand cranked RTO in 12g off the bay. Really cheap as the clamp was broken. Stripped it down and I use just the RTO bit in my pillar drill. Get a lovely turnover with no bulging.

[enfieldspares]

1 hour ago, DUNKS said:

You do take a chance but for the price of it  I bought an old hand cranked RTO in 12g off the bay. Really cheap as the clamp was broken. Stripped it down and I use just the RTO bit in my pillar drill. Get a lovely turnover with no bulging.

I like that! Thinking outside the box! 

[maxwell]

Some very knowledgeable replies, thank you all,