This handy adapter doesn’t appear to have been used But there are some marks and Tarnishing from storage Completely with instructions 3/4 x 16 tpi lathe fitting Thanks
Woodturning Scroll Chuck SCT 4 Jaw Geared Complete Boxed Set 95mm M33 x 3.5mm
Bosch Professional SDS-plus keyless chuck 1.5 to 13 mm. SDS-plus 2608572227
4PC Pin Vice Set 0-4.8mm Jewellery Making Drill Chuck Watch Model Making
High Quality Pin Vice with 3 Jaw chuck - Expo 750-70
Small chuck jaws
SPECIALTY & METALLIC THREAD SPOOL PIN ADAPTER FITS MOST MACHINES