Vicmarc V00344-5 Drive Dog, Multi M45
This consists of 3 individually removable Drive Dogs, 18mm, 26mm and 42mm, with a threaded adaptor.
The three drive dogs can screw into the threaded adaptor each one to suite your type of work.
Please note: for insert type a VM120/150 insert is required to fit to your lathe. Inserts are available for mist threads.