No. 1 drive shafts are normally used where standard end plates are furnished. They are jig drilled for ease of installation.
Martin Drive Shaft, Standard End Plate, 3 in Shaft Dia, 16-5/8 in Shaft Length, 2 Bolts, 6 in Keyway Length, 3/4 in Keyway Width, 3/8 in Keyway Depth, Steel, Protective Coating, 16-5/8 in OAL