Seriously - In that second picture I see you have found the other QCTP holders.
To the right of them is a v-centre, which is used to drill a hole through a piece of round stock. It is placed in the tailstock and the drill placed in the (spindle) chuck. You hold the tube in the v whilst extending the tailstock ram toward the headstock.
To the left of the drill chucks is a boring bar holder that replaces the lantern holder (or on your case the QCTP). Personally, I'd make a set of sleeves so that you can use smaller type bars in the number 4 QCTP holder. If you have a number 2 QCTP holder, it will have a v-groove running along the length of the bottom of the tool slot, so you can hold round bars.
I'm sure you have a handle on the rest of the items.
To the right of them is a v-centre, which is used to drill a hole through a piece of round stock. It is placed in the tailstock and the drill placed in the (spindle) chuck. You hold the tube in the v whilst extending the tailstock ram toward the headstock.
To the left of the drill chucks is a boring bar holder that replaces the lantern holder (or on your case the QCTP). Personally, I'd make a set of sleeves so that you can use smaller type bars in the number 4 QCTP holder. If you have a number 2 QCTP holder, it will have a v-groove running along the length of the bottom of the tool slot, so you can hold round bars.
I'm sure you have a handle on the rest of the items.
Hunting American dentists since 2015.