NOMA 1033 Estate Snowblower 3/4 X 11 Hex Shaft with 8t Sprocket 4062MA SAVE admin November 25, 2023 Comments Off This is a hard to find hex shaft from a 10HP 33 Estate/Noma snowblower. It’s in good used condition with nice 8 tooth sprocket. Overall length is 11″, hex portion is 9″ long and 3/4 wide across the flats.