Spiracool Backpads in 4" & 7"
The depressed center locknuts are specifically designed to secure the Zec discs while still providing full abrasive use. It sits below the abrasive disc allowing maximum use.
Spanner refers to a specialized wrench with two adjustable pins on the ends. (These pins fit into the holes cut into the zec locknuts.)
Use the adaptor to transform your 5/8"-11 female arbor to 1/4" male shank can fit:
- Zec Disks with backpad
- diamond core bits with 5/8-11 thread
- Back holders with 5/8-11 thread
- Diamond cup wheels with 5/8-11 thread
- All other tools with 5/8-11 thread
