Will this blade fit Corona 1700 pole saw?

Yes it does! The blade for this tree pruner is Lowe's item 84606. This 13-inch Razor Tooth Saw Blade has offset teeth and each blade is sharpened on three sides, making is much faster and easier to cut with than a conventional tooth blade. The metal on this blade is also impulse hardened, which means that the sharpness of the teeth will last longer than non-treated blades. The blade is also curved, which puts more teeth onto the branch for faster cutting. Thanks!