Perfect fixture key for most applications. Keys are interchangeable because they all fit in a standard 5/8" reamed hole. Allows mounting any fixture on any machine tool simply by switching keys. Eliminates the need to slot the underside of a fixture. Concentricity .0005" TIR or better. Lock in place from above or below using a hex wrench. Made in USA.
Can be locked in place from above(left). Can be locked in place from below(right).
Patented locking action aligns fixture key perfectly with slot axis.

| Material | Heat Treat | Finish | DFARS | RoHS |
| 1215 Steel | Carburized Hardened | Black Oxide | Yes | Yes |

| Table Slot Size (Inch) | A (Inch) | Shank Diameter (Inch) | B (Inch) | C (Inch) | D (Inch) |
| 5/8" | 0.6250" | 5/8" | 1/2" | 3/8" | 0.23" |