6x3/4 pulley. Die-cast. For A section. 1/2" V-Belts. Outer Diameter: 6", Bore Size: 3/4", Type: A No. 700A5: Outer Diameter: 7", Bore Size: 1/2", Type: A No. 700A6: Outer Diameter: 7", Bore Size: 5/8", Type: A No. 700A7: Outer Diameter: 7", Bore Size: 3/4", Type: A No. 800A5: Outer Diameter: 8", Bore Size: 1/2", Type: A No. 800A6: Outer Diameter: 8", Bore Size: 5/8", Type: A No. 800A7: Outer Diameter: 8", Bore Size: 3/4", Type: A No. 800A8: Outer Diameter: 8", Bore Size: 1", Type: A No. 1000A6: Outer Diameter: 10", Bore Size: 5/8", Type: A No. 1000A7: Outer Diameter: 10", Bore Size: 3/4", Type: A