4-Prong, 1 Morse Taper British made drive centre fits most lathes. Made by Planet Plus (Rotur brand) in quality steel.

PLEASE NOTE - the image is 2 Morse.
Not sure what taper you have? Measure the hole size of the taper socket. The diameter of the hole at the largest point is approximately
1 Morse Taper 12mm
2 Morse Taper 18mm