It's much easier to get a leaf blower gutter attachment. You need to make sure that it fits your brand of leaf blower, but they're pretty easy to find. Greenworks, Black + Decker, ...

Best Leaf Blower Attachment: BLACK+DECKER BZOBL50 Gutter Clean Quick Connect Best Pressure Washer Attachment: RIDGE WASHER Gutter Cleaner Attachment What to Consider ...

An extension for a standard leaf blower will allow you to clear gutters by stretching the nozzle to roof height and adding an attachment that points down toward the gutter. This universal leaf ...