Mitered outside corners are where good tile work either looks custom or looks homemade — and a rough 45° cut shows every time. The Montolit Jollymont is a specialty diamond blade for angle grinders built for exactly this: precise 45° miters and beveled edges on porcelain, stone, and more. Its alternating continuous-band "turbo" segments cut fast and clean, wet or dry, so mitered corners come together tight enough to look factory-made.
It's available in 4.5" and 5" and handles porcelain stoneware, thick porcelain, natural stone, granite, marble, and klinker.
Pro tip: Keep the grinder angle steady through the whole pass — drifting off 45° is what leaves a gap at the corner. Leave a hair of material and finish the very edge with a light pass so the two faces meet clean.
