Buck Chuck Hardinge Lathe Adapter Plate 6″ 4° Taper A6-4DEG Toolroom
Here’s a 4 degree taper adapter plate made for a Hardinge taper spindle lathe (and the knock-off copies too). Mount that Buck 3, 4, 6 jaw ATSC or AT+ chuck to this and then put on your lathe. Has the threaded lock pin.