Dijet SMC6012-10875 6" Indexable Face Mill Cutter 1-1/2" Arbor 12 Flute

From the face of the mill the thru-hole size is 13/16", counterbore is 1-1/4" diameter, 1/2" deep
The back side has a slot 5/8" wide, 1/2" deep with 1-1/2" counterbore, 1" deep
Overall height of the unit is 2-3/8"