I have found a Hi lift blade that I believe will be outstanding in wet grass for my yBravo 25 [even better than stock] but the spindle hole is 15/16” not 5/8”. Oregon ® makes a knurled reducer that goes 1” down the 5/8” but not 15/16” down the 5/8”. Any other manufacturers make anything like this? Tips on how to drill out to 1"...? I do have access to a drill press FWIW. Best type of bit for this? Stepped hole saw? I also figure if I'm doing this I can drill out semi worn down edger blades off my Tanaka TLE-600 with the small hole and drill those out to 1" and use the remainder on my Echo stick edger. Any input appreciated.