C1018 Precision ground. Used when keyway in shaft is not the same as sprocket.
1018 STEEL STEP KEY STOCK 1-1 (0.0625" X 0.03125" X 0.125" X 0.0625") X 12""
1018 STEEL STEP KEY STOCK 3-2 (0.1875" X 0.09375" X 0.25" X 0.125") X 12""
1018 STEEL STEP KEY STOCK 6-2 (0.25" X 0.125" X 0.375" X 0.1875") X 12""
1018 STEEL STEP KEY STOCK 8-1 (0.375" X 0.1875" X 0.3125" X 0.15625") X 12""
1018 STEEL STEP KEY STOCK 11-2 (0.375" X 0.1875" X 0.5" X 0.25") X 12""
1018 STEEL STEP KEY STOCK 15-2 (0.5" X 0.25" X 0.625" X 0.3125") X 12""