These Sherline arbors are not designed to be used on Sherline lathes,
but rather are specifically suited to the types of lathes often
used by jewelers and watch makers. Though highly accurate,
these machines are often not very versatile.
The 3/4-16 arbors provide a way to mount a Sherline 3-jaw
or 4-jaw chuck to this type of lathe. The 3/8-24 arbors allow
a 1/4" or 3/8" drill chuck to be mounted.The ability to mount
these chucks adds a great deal of versatility to this type of
special-purpose tool.
2095 Sherline Clock Maker's Gear Cutting Arbor Instructions
CA Prop 65 WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance know to the State of California to cause cancer. Avoid inhaling wood dust or use dust mask or other safeguards for personal protection.
I can do all this through him who gives me strength. Philippians 4:13