Montolit Gold Line DNA Grinder Blades — Speed and Finesse on Hard Porcelain

Freehand cuts on hard porcelain stoneware are where cheap grinder blades expose themselves — they wander, they blow out the edge, and they buzz your hands numb. The Gold Line DNA blade brings Montolit's DNA diamond-array technology to the angle grinder, holding a clean, controlled cut on the dense material that fights ordinary blades. A reinforced steel core kills vibration while the fine diamond bond keeps edges from blowing out, even through tight curves and detail work.

It's built for angle grinders and comes in 4.5" and 5". When the job calls for finished 45° miters rather than straight cuts and shaping, move to the Jollymont; for guided straight cuts on thin panels, the Slim Cut line is the better tool.

Why Tile Pros Choose It

• DNA diamond array: Even, aggressive, controlled cutting on hard porcelain
• Low vibration: Reinforced steel core for a smoother, steadier feel
• Clean edges: Fine diamond bond reduces blowout, even on tight curves
• Grinder-ready: Available in 4.5" and 5" for standard angle grinders
• Shaping and detail: Controlled enough for curves and cutouts, not just straight runs
• Keeps your hands in the game: Your wrists will notice the missing buzz by lunchtime

Pro tip: Let the blade do the work — leaning on a grinder is what causes blowout and premature wear. Take curves in shallow, progressive passes rather than forcing one deep cut, and keep the blade moving to avoid overheating a single spot.