The Shaft Spacers work with Tequila Stainless and A-1 Tool Indexing Hubs. The Spacer removes the void which would be present in smaller diameter tools and provides proper alignment in spacing in connecting the shaft to an indexing hub.
Spacers are pre drillled to accommodate 7/32″. 1/4″, 5/16″ and 3/8″ took shafts.