Key Block, Spindle CLOSEOUT

Key block at bottom of X3 spindle.
In your instruction manual, this part appears on the parts list as:
| Item No | Models |
|---|---|
| 4 | Grizzly G0463 Grizzly Small Mill Harbor Freight 93885 Central Machinery Small Mill Various X3-US SIEG Small Mill Woodstock International M1110 Shop Fox Small Mill |
Grooving & Cut-Off Tool, 3/8" Shank, HSS Blade, A R Warner Kit #28
Boring Bar Set, 3/8" Shank, Carbide
