One side of the insert is a full size, and the other size is a half size bigger.
Drill Size 31/32″: 37/64, 19/32, 39/64, 5/8, 41/64, 21/32, 43/64, 11/16, 45/64, 23/32, 47/64, 3/4, 49/64,25/32, 51/64 and 13/16.
Color: Grape Only
Drill Size 1-1/32″: 53/64, 27/32, 55/64, 7/8, 57/64 and 29/32.