For Sherline systems.
Lathe Chuck (3/4-16 RH) to Morse Taper (#0) Adapter
With that adapter one can mount a lathe chuck in the tailstock.

The piece comes with a glue on protractor (angle) scale that can be glued on the backside of a lathe chuck. That system forms a low budget indexing tool for e.g. precisely and fast boring of holes at different angles using e.g. the lathe-mill attachment. The adapter can also be used for tailstock drilling (see safety notes in the manual).

$29.99 (Aluminum) - - in stock
$34.99 (Steel) - out of stock
[ Manual ] - pdf (read safety notes)
[ Other thread sizes ] - UNIMAT
Other sizes can be made including 1/2-20, 3/8-24, M12-1.0, M14-1.0, 3/4-16 LH, 3/4-10, etc.
Taper up to MT3