This is an 8-1/4" Chuck Mounting Back Plate w/ D1-8 Mount

SPECIFICATIONS: 

Outside Diameter: 8-1/4"

Center Hub Diameter: 3.74"

Inside Diameter: 3.14"

Mount: D1-8

Plate Thickness: 1.51"

Comes exactly as shown in pictures.

LOCAL PICKUP AVAILABLE @ 1520-A INDUSTRIAL PARK ST. COVINA, CA 91722.

HABLAMOS ESPAÑOL.