Quick change tool holders

[David Standing 1Participant @davidstanding1]

Mark

Don't get sidetracked by metric or imperial, as far as I know all the Dickson type QCTP and holders are metric.

I suspect your toolholders are TO/SO, which ties in with the markings on the toolpost.

Is yours a 'Rapid' marked toolpost? Boxford fitted these to many of their X10 lathes.

Can you measure the thickness under the part of the toolholder beneath where the cutting tool sits?

I suspect it is 10mm, +/- a bit.

Last question, and the most important one, do the toolholders you have sit the cutting tool tip at the correct centre height?

[Mark TurverParticipant @markturver68926]

Hi, yes 10mm under tool, yes heights all OK, but cannot use 16mm tools cannot lower to center) despite holder having more than wide enough capability. 14mm if there were such as size, would be max, so have shifted to 12×12 from 10×10 I was using on Sieg SC4 / Mumford ml7 before it. I have a 16 X 16, that I will mill 4 off. I want to buy more holders, for the obvious reason, and didn’t want to buy incorrect ones, as I suspect I would have, if I had bought T51’s?
Again thank you to all who have taken time to reply and shown me light at the end of a confusing tunnel.

[David Standing 1Participant @davidstanding1]

Mark

You probably can get 16mm tools in and achieve work centre (although I don't think that is what Boxford ever intended), but you will need the deepest tool holders.

The deeper the holder, the further you can lower the bottom of the cutting tool.

The Rotagrip/Bison ones are 35 or 44mm height.

The OEM ones are 38 or 44mm height.

I have probably around 40 tool holders, a mixture of all four types.

The platform the cutting tool sits on is around 5mm lower on the 44mm height tool holders than on the 38mm ones.

What are the RDG ones? Dunno, and there is no helpful information on their website.

Unless you can persuade someone at RDG to measure the overall height of their two types of toolholder, and the height of the tool platform off the base, I would not take a chance on them.

 

 

 

 

Edited By David Standing 1 on 24/01/2019 14:59:19

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