Precision Grinding Performance: Featuring 38mm CNC-cut 420 stainless steel burrs with a hardness of 55-58HRC, an all-in-one metal body, and a double-bearing central shaft structure for better concentricity, delivering faster and easier grinding with consistent results. Adjustable Grinding Fineness: Equipped with a built-in adjustment knob offering over 36 click settings to achieve the perfect grind for various brewing methods such as espresso, Americano, latte, cappuccino, macchiato, mocha, pour-over, drip, French press, and cold brew. Portable & Ergonomic Design: Virtually silent operation with an ergonomically designed long handle for effortless grinding. All-metal integrated construction without plastic parts, making it easy to carry and use anywhere without electricity. Easy to Clean: Innovative tool-free disassembly and detachable outer ring burrs allow for thorough cleaning, helping to maintain the true flavor of your coffee beans.